Map Work | ISC Class 12 Geography Notes

This note covers the map-work requirements for India specified for identifying, marking and labelling features on an outline map: the locational setting of India, mountains, plains, plateaus, peninsulas, lakes, water bodies, mountain passes, rivers, population features, agricultural regions, power resources, industries, transport routes and ports, together with the sketch maps candidates must be able to draw and interpret, including the climate sketch map.

What is the locational setting of India that must be identified on the map?

India's mainland extends between 8°4'N and 37°6'N latitude and 68°7'E and 97°25'E longitude. The central latitude of India is 23°30'N and the central longitude is 82°30'E; these two lines, together, fix the geometric centre of the country on the map.

The 82°30'E meridian has been chosen as the standard meridian because there is a general understanding among countries of the world to select standard meridians in multiples of 7°30' of longitude, and Indian Standard Time is ahead of Greenwich Mean Time by 5 hours 30 minutes.

The northern point of mainland India is Indira Col and the southern point is Cape Comorin (Kanniyakumari); these two points must be marked at the extreme north and extreme south of the mainland outline.

Definition: Standard meridian. The chosen line of longitude used to fix a single time for an entire country; for India it is 82°30'E, selected because countries conventionally choose their standard meridian in multiples of 7°30' of longitude.

Which mountain ranges must be marked and labelled?

The Himalayas consist of a series of parallel ranges running broadly northwest to southeast in the northwestern part of the country, changing orientation through Darjiling, Sikkim and Arunachal Pradesh.

The three parallel ranges to be marked are the Greater Himalaya (the highest, continuous axial range), the Lesser Himalaya and the Outer Himalaya or Shiwalik (the outermost and lowest range, running along the foothills).

North of these lies the Trans-Himalayan range, the Karakoram, which includes peaks such as K2.

In the peninsula, the Aravalli range sits along the western flank of the Peninsular Block's northern boundary, running from near Delhi towards Kachchh.

The Vindhya range and the Satpura range enclose the Narmada in a rift valley between them, with the Maikal range and Mahadeo hills marking the northern edge of the Deccan Plateau.

The Western Ghats, locally called the Sahyadri in Maharashtra, are more continuous and higher than the discontinuous, eroded Eastern Ghats; the two Ghats meet at the Nilgiri hills, where Dodabetta (2,637 m) is located.

South of the Nilgiris lie the Cardamom hills and Anaimalai hills, where Anaimudi (2,695 m), the highest peak of the Peninsular plateau, is found.

In the northeast, the Meghalaya plateau is subdivided into the Garo, Khasi and Jaintia hills, named after the tribal groups inhabiting the region, with the Patkoi hills, Naga hills and Mizo hills forming the northeastern hill arc along the Myanmar border.

On an outline map, mark and label the Greater, Lesser and Outer (Shiwalik) Himalaya as three parallel bands in the north; the Karakoram range to its north; the Aravallis, Vindhyas and Satpuras in the centre; the Western and Eastern Ghats along the two coasts meeting at the Nilgiris; the Cardamom hills at the southern tip; and the Garo, Khasi, Jaintia, Patkoi, Naga and Mizo hills in the northeast.

Which plains, plateaus and peninsulas must be marked and labelled?

The Indus-Ganga-Brahmaputra plain is the alluvial lowland built by the three river systems, extending about 3,200 km from east to west with a width of 150 to 300 km.

Along the west coast, the narrow coastal strip is divided from north to south into the Kachchh and Kathiawar coast, the Konkan coast in Maharashtra, the Kanara (Goan) coast, and the Malabar coast in Karnataka and Kerala.

Along the east coast, the broader plain is divided into the Northern Circars and the Coromandel Coast.

The Malwa plateau lies in Madhya Pradesh; the Peninsular plateau as a whole is made up of a series of patland plateaus such as the Malwa, Coimbatore and Karnataka plateaus. The Chota Nagpur plateau lies to the south of the Rajmahal hills and holds a large reserve of mineral resources.

The Deccan Plateau is bordered by the Western Ghats, Eastern Ghats and the Satpura-Maikal-Mahadeo hills in the north.

The Meghalaya plateau, separated from the main Peninsular Block by the Malda fault, is an extension of the Peninsular plateau in the northeast.

On the two peninsulas: the Kathiawar peninsula projects into the Arabian Sea between the Gulf of Kachchh and the Gulf of Khambat, while Kachchh lies to its north, bounded by the Rann of Kachchh.

Which lakes and water bodies must be marked and labelled?

Among lakes, Chilika Lake lies on the Odisha coast near the Eastern Ghats, and Pulicat Lake lies further south on the Andhra Pradesh-Tamil Nadu coast.

The water bodies to be marked are the Arabian Sea on the west coast and the Bay of Bengal on the east coast, both arms of the Indian Ocean.

The Palk Strait, together with the Gulf of Mannar, separates India from Sri Lanka. On the west coast, the Gulf of Kachchh and the Gulf of Khambat lie on either side of the Kathiawar peninsula, with the Narmada forming a broad 27 km estuary at the head of the Gulf of Khambat.

Mark the Arabian Sea, Bay of Bengal, Palk Strait, Gulf of Kachchh and Gulf of Khambat; the lakes Chilika and Pulicat; the rivers Indus, Jhelum, Chenab, Ravi, Beas, Sutlej, Ganga, Yamuna, Gomti, Ghaghara, Gandak, Kosi, Chambal, Betwa, Ken, Son, Damodar, Luni, Narmada, Tapi, Mahanadi, Godavari, Krishna, Kaveri and Brahmaputra; and the passes Karakoram, Shipki La, Nathu La, Bomdi La, Palghat, Bhorghat and Thalghat.

Which mountain passes must be marked and labelled?

The Karakoram pass lies in the north, on the Trans-Himalayan range. The Shipki La is the pass on the Himalayan ranges through which the Sutlej enters India from Tibet, and it is an important crossing point into the upper Sutlej valley.

Nathu La and Bomdi La are passes further east, through the Sikkim and Arunachal Himalaya respectively, historically used as trade routes between India and Tibet.

In the Western Ghats, three passes link the Deccan plateau to the coast: Palghat (Palakkad) gap in Kerala, and the Bhorghat and Thalghat passes connecting the Konkan coast with the Deccan plateau in Maharashtra.

Passes matter on this map because the Himalayas, together with the Hindukush and Sulaiman ranges in the northwest and the Purvachal hills in the northeast, form a formidable physical barrier between the Indian subcontinent and the neighbouring regions of Central and East Asia. Apart from the passes named above for map work, a few other well-known crossing points, such as the Khyber and the Bolan, are mentioned as historically difficult routes through this barrier, though they lie outside present-day India and are not on the mark-and-label list.

A student should therefore treat each pass not merely as an isolated dot on the outline map but as a break in a continuous mountain wall, marked precisely at the point where a river or a trade route is shown crossing the range, with the name written along the line of the range rather than floating in open space.

Which rivers must be identified on the map?

In the Indus system, the Indus itself (total length 2,880 km, of which 1,114 km lies in India) originates near Bokhar Chu in the Kailash range and flows through Ladakh.

Its tributaries, the Panjnad rivers, are the Jhelum (rising at Verinag, flowing through Srinagar and the Wular lake), the Chenab (formed by the Chandra and Bhaga, hence also called Chandrabhaga, flowing 1,180 km before entering Pakistan), the Ravi (rising west of the Rohtang pass), the Beas (rising near the Beas Kund at the Rohtang Pass) and the Sutlej (rising near Mansarovar in Tibet, an antecedent river that feeds the Bhakra Nangal canal system).

In the Ganga system, the Ganga (2,525 km long) rises as the Bhagirathi near Gaumukh and takes its name after meeting the Alaknanda at Devprayag; its left-bank tributaries include the Gomti, Ghaghara, Gandak and Kosi, while the Yamuna (its westernmost and longest tributary, from the Yamunotri glacier) is joined on its right bank by the Chambal, Betwa and Ken, all rising on the Peninsular plateau.

The Son is the Ganga's major right-bank tributary, rising on the Amarkantak plateau. The Damodar flows through a rift valley on the eastern margin of the Chotanagpur plateau to join the Hugli.

In the Brahmaputra system, the Brahmaputra rises as the Tsangpo near the Mansarovar lake and enters India west of Sadiya as the Siang/Dihang.

On the peninsula, the Luni is the largest river system of Rajasthan, west of the Aravallis, and is ephemeral.

The Narmada (1,312 km) and Tapi (724 km) flow westward through rift valleys into the Arabian Sea, both exceptions among Peninsular rivers that otherwise flow mostly from west to east.

The Mahanadi (851 km), Godavari (1,465 km, the largest Peninsular river system), Krishna (1,401 km) and Kaveri (800 km) all flow eastward into the Bay of Bengal.

What population features must be identified on the outline map?

Candidates must locate, from the latest Census figures, the states with the lowest and highest density of population, the highest and lowest level of urbanisation, the highest Index of Concentration of population, the highest and lowest sex ratio, and the highest and lowest literacy.

The six cities to be located and marked by name are Delhi, Mumbai, Chennai and Kolkata, together with Bengaluru and Ahmedabad.

These six are among India's largest urban agglomerations: Delhi is the National Capital Territory, Mumbai and Ahmedabad lie on the west coast in Maharashtra and Gujarat, Chennai lies on the Coromandel coast in Tamil Nadu, Kolkata lies on the Hugli distributary of the Ganga in West Bengal, and Bengaluru lies on the Karnataka plateau.

The latest completed census is the Census of India 2011, so the states to mark are those of 2011, shown in the table below. If a newer census is published, its ranking replaces these.

Which agricultural producing regions must be identified?

For each crop in the list, the main producing states or regions must be marked. Wheat is grown chiefly in Punjab, Haryana and Uttar Pradesh; rice in West Bengal, Punjab and Uttar Pradesh; tea in Assam and West Bengal;

coffee chiefly in Karnataka; cotton in Gujarat and Maharashtra; jute in West Bengal; sugarcane in Uttar Pradesh; groundnut in Gujarat; and coconut in Kerala.

These are the regions most commonly cited for each crop and should be checked against the latest agricultural statistics given by the school before an examination, since the leading producing state for a given crop can shift from one year to the next as cropping patterns, irrigation and prices change.

When marking a producing region for a crop, a student should shade or hatch the approximate state boundary rather than placing a single point symbol, because a crop region covers a wide area and not one location; the state name should then be written clearly inside or alongside the shaded area, with a small legend entry showing what the shading or hatching for that crop represents. Where two or more states are named for the same crop, as with wheat in Punjab, Haryana and Uttar Pradesh, all the named states must be shaded, since an incomplete answer that marks only one of them would not satisfy the instruction to identify the main producing states.

Which power resources, industries and ports must be identified?

The nuclear power stations to be marked are Kaiga (Karnataka), Kalpakkam (Tamil Nadu), Tarapur (Maharashtra), Rawatbhata (Rajasthan), Narora (Uttar Pradesh) and Kakrapara (Gujarat). Among industries: the sugar industry is marked at Ahmednagar and Pune;

cotton textiles at Mumbai, Ahmedabad and Surat; iron and steel at TISCO, Jamshedpur, the Bhilai Iron and Steel Plant, and the Vishakhapatnam Iron and Steel Plant;

petrochemicals at UDEX, Koyali and IPCL, Vadodara; and oil refineries at IOCL, Digboi, Barauni and Haldia. The ports to be marked are Mumbai, Kochi, Haldia, Chennai and Kolkata, representing major harbours on both coasts.

Which transport routes must be traced?

The route of the Golden Quadrilateral, which has four sides connecting the metropolitan cities, must be traced, along with the North-South Corridor and the East-West Corridor, which together form India's main national highway network linking the north, south, east and west of the country.

The state with the highest density of roads, that is, the most kilometres of road per 100 sq. km of area, is Kerala, and it should be marked as such. The North-South Corridor runs from Srinagar to Kanyakumari and the East-West Corridor from Silchar in Assam to Porbandar in Gujarat.

To attempt a map-work question of this kind systematically, a student should follow a fixed sequence of steps so that no part of the instruction is missed.

1. Read the question instruction carefully to see whether the item must be marked, labelled or merely identified, since each calls for a different mark on the map.
2. Locate the approximate position using the nearest reference points already fixed on the map, such as a coastline, a river mouth or a state boundary.
3. Place a clear, correctly shaped symbol (a dot for a point feature, a line for a river or route, a cross for a mountain pass) exactly at that position.
4. Write the name in neat capital or title-case letters beside the symbol, using a short leader line if the space is crowded, so the label does not cover any other feature.
5. Prepare an index or legend wherever the question requires one, showing the symbol used for each category of feature.

What sketch maps must candidates be able to draw and interpret?

Besides locating named features on a printed outline map, candidates should be able to draw, label, understand and interpret their own sketch maps on six themes: the locational setting of India (the extreme coordinates, central latitude and longitude and the standard meridian); the relief of India (the mountain, plain, plateau and desert divisions);

climate; population distribution; industries; and transport networks. A sketch map is a simplified, hand-drawn outline that keeps only the features relevant to the theme being tested, so that the overall pattern (for example, the concentration of industrial centres along the west coast, or the eastward orientation of most Peninsular rivers) is clear at a glance.

For the locational setting sketch, the outline should show only the extreme latitudes and longitudes, the central latitude and longitude, and the standard meridian passing through the country, without adding every state boundary. For the relief sketch, the mountain, plain, plateau and desert divisions covered earlier in this note (the Himalayas, the Indo-Ganga-Brahmaputra plain, the Peninsular plateau and the Indian desert) should be shown as simplified blocks or bands rather than with the fine detail of a printed physical map.

How is a climate sketch map drawn and interpreted?

A climate sketch map shows the broad climatic divisions of India as simplified bands or blocks, drawn on a freehand outline of the country. The divisions to show are the monsoon type of the peninsular interior, the hot desert type of western Rajasthan, the humid subtropical type of the northern plains and the cold, highland type of the Himalayan belt.

Two controls explain the pattern and should be written as short labels on the sketch. First, the Himalayas act as a climatic divide, blocking the cold Central Asian winds from entering India in winter and forcing the monsoon winds to shed their rain on the southern slopes. Second, distance from the sea makes the interior more continental, with a greater range of temperature, while the coasts stay equable.

To interpret the sketch, a candidate reads the pattern rather than the detail: rainfall decreases from east to west across the northern plains and from the Western Ghats towards the Deccan interior, and the annual range of temperature increases inland. A short legend naming each climatic type, and arrows showing the direction of the rain-bearing monsoon winds, complete the sketch.

For the population, industries and transport sketches, a candidate draws only the outline of India and then plots the specific cities, industrial centres or routes asked for in the question, such as the six urban agglomerations or the Golden Quadrilateral, using clear point or line symbols and a short legend.

Each of these sketches is also read for its pattern. A population sketch shows dense belts in the Ganga plain and on the coastal plains of Kerala and West Bengal, and sparse areas in the Himalaya, the Thar desert of western Rajasthan and the hills of the north-east; relief, rainfall and irrigation, accessibility and the level of development explain the contrast. An industries sketch shows clusters around Mumbai-Pune, Ahmedabad-Vadodara, Kolkata-Hugli and the Chota Nagpur plateau, where iron ore and coal lie close together (Jamshedpur, Bhilai), and the pattern is explained by raw materials, ports, power and markets. A transport sketch shows the Golden Quadrilateral linking Delhi, Mumbai, Chennai and Kolkata and the two corridors crossing it, with a dense network in the plains and a thin one in the mountains and the desert.

The same rules of accuracy that apply to the outline map, that is, correct position, a proper symbol and a readable label, apply equally to a sketch map drawn freehand.

Going beyond the syllabus

These ideas extend the map-work unit and are not needed for the questions on it. They help explain why some features on the maps are drawn the way they are.

How is India's drainage divided between the two seas?

Nearly 77 per cent of India's drainage area, including the Ganga, Brahmaputra, Mahanadi and Krishna, is oriented towards the Bay of Bengal, while 23 per cent, including the Indus, Narmada, Tapi, Mahi and Periyar systems, discharges into the Arabian Sea; this water divide runs along the Delhi ridge, the Aravallis and the Sahyadris.

How long is India's coastline?

India's coastline has long been given as 6,100 km along the mainland alone and 7,517 km including the Andaman and Nicobar and Lakshadweep island groups, the figures in the textbooks, which is why so many port cities appear scattered along both coasts on the map.

A recent re-measurement on more detailed maps puts the total length of the coastline at about 11,098 km.

How do the Himalayan and Peninsular drainage systems differ?

The Himalayan and Peninsular drainage systems differ in age and behaviour in ways that are not asked for directly in map work but help a student remember why the rivers are drawn the way they are. The Himalayan rivers are perennial, fed by both melting snow and rainfall, and their courses in the plains show strong meandering with ox-bow lakes and shifting channels, as with the Kosi in Bihar. The Peninsular rivers, by contrast, are older, follow fixed courses with few meanders, and are mostly non-perennial except where fed by heavy monsoon rainfall; the Narmada and the Tapi stand out among them because they flow westward through rift valleys rather than eastward like the Mahanadi, Godavari, Krishna and Kaveri.

Glossary

• Standard meridian — the single line of longitude chosen to fix a uniform time for a country; 82°30'E for India.
• Catchment area — the area from which a river collects its water.
• Watershed — the boundary line separating one drainage basin from another; also used for the catchment of a small river.
• River basin — the larger catchment area of a major river, covering a wider area than a watershed.
• Delta — a fan-shaped depositional landform formed where a river splits into distributaries before entering the sea.
• Estuary — a wide, funnel-shaped river mouth where fresh and sea water mix, as the Narmada forms near Bharuch.
• Peninsula — a landmass projecting into the sea and surrounded by water on three sides, such as Kathiawar.
• Plateau — an elevated, relatively flat upland area raised above the surrounding land.
• Gulf — a large inlet of the sea, partly enclosed by land, larger than a bay.
• Strait — a narrow channel of water connecting two larger water bodies and separating two landmasses.
• Corridor (transport) — a continuous high-capacity route linking distant parts of the country, such as the North-South Corridor.
• Index/legend — the key on a map explaining the symbols used for different features.
• Sketch map — a simplified hand-drawn map showing only the features relevant to a given theme.

Common errors and misconceptions

• Misconception: Indira Col and Cape Comorin are two separate, unrelated place names. Correct: they mark the northern and southern extremities of mainland India and must be plotted at the opposite ends of the latitudinal extent.
• Misconception: the Western and Eastern Ghats run parallel and never meet. Correct: they meet at the Nilgiri hills in the south.
• Misconception: the Narmada and Tapi flow eastward like most Peninsular rivers. Correct: both flow westward through rift valleys into the Arabian Sea, as exceptions to the general eastward flow.
• Misconception: Chilika and Pulicat are freshwater lakes. Correct: both are coastal lagoons connected to the sea, not inland freshwater lakes.
• Misconception: the Gulf of Kachchh and the Gulf of Khambat are the same water body. Correct: they lie on opposite sides of the Kathiawar peninsula.
• Misconception: the standard meridian of India is the same as the central longitude for every purpose. Correct: both happen to be 82°30'E, but one fixes time (standard meridian) and the other is the geometric mid-longitude of the country.
• Misconception: labelling an item anywhere near its approximate area is enough. Correct: the symbol must sit exactly at the correct location, with the label placed so it does not obscure neighbouring features.

Exam-style questions with model answers

Q1. Choose the correct option. The narrow waterbody that separates India from Sri Lanka is: (a) Gulf of Khambat (b) Palk Strait (c) Gulf of Kachchh (d) Nine Degree Channel. [1 mark]

1. (b) Palk Strait. It lies between India and Sri Lanka, together with the Gulf of Mannar nearby.

Q2. Choose the correct option. The river marked on an outline map that rises near Mansarovar in Tibet and enters India through the Shipki La is: (a) Beas (b) Ravi (c) Sutlej (d) Jhelum. [1 mark]

1. (c) Sutlej. It rises near Mansarovar in Tibet, passes through the Shipki La and enters the Punjab plains.

Q3. Name the most urbanised state of India according to the Census of 2011. [1 mark]

1. Goa, where about 62 per cent of the people lived in towns and cities in 2011.

Q4. State the latitudinal and longitudinal extent of mainland India, and name its northern and southern points. [2 marks]

1. Mainland India extends from 8°4'N to 37°6'N latitude and from 68°7'E to 97°25'E longitude.
2. The northern point of the mainland is Indira Col and the southern point is Cape Comorin (Kanniyakumari).

Q5. Distinguish between the Western Ghats and the Eastern Ghats, and state where the two meet. [3 marks]

1. The Western Ghats are comparatively higher in elevation and more continuous than the Eastern Ghats, with an average elevation of about 1,500 m.
2. The Eastern Ghats are discontinuous, low hills that are highly eroded by rivers such as the Mahanadi, Godavari, Krishna and Kaveri.
3. The two ranges meet each other at the Nilgiri hills, where Dodabetta (2,637 m) is located.

Q6. Explain why the Narmada and the Tapi are exceptions among the Peninsular rivers, and name the water body they enter. [3 marks]

1. Most major Peninsular rivers flow from west to east into the Bay of Bengal, but the Narmada and the Tapi flow westward.
2. Both flow through rift valleys, the Narmada between the Vindhya range in the north and the Satpura in the south.
3. They discharge into the Arabian Sea; the Narmada meets it south of Bharuch, forming a broad 27 km long estuary.

Q7. Explain how a sketch map of the climate of India is drawn and interpreted. [4 marks]

1. Draw a freehand outline of India and divide it into simplified climatic bands: the monsoon type of the peninsular interior, the hot desert type of western Rajasthan, the humid subtropical type of the northern plains and the cold highland type of the Himalaya.
2. Label the Himalayas as a climatic divide, since they block cold Central Asian winds in winter and force the monsoon winds to shed rain on their southern slopes.
3. Show that distance from the sea makes the interior more continental, with a greater range of temperature, while the coasts remain equable.
4. Interpret the pattern: rainfall decreases from east to west across the northern plains and from the Western Ghats into the Deccan interior, and add a legend and arrows for the rain-bearing monsoon winds.

Q8. Evaluate the importance of the Index of Concentration of population and of the sex ratio as indicators marked on the population map of India. [5 marks]

1. The Index of Concentration shows how closely a state's population is packed into part of its area, so the state with the highest index is the one whose people are most concentrated rather than spread evenly.
2. Density of population, the number of persons per unit area, is a related but simpler measure, and the states with the highest and lowest density must both be identified.
3. The sex ratio, the number of females per 1,000 males, reveals the social balance of a state's population, and the states with the highest and lowest ratio are marked to show that this balance varies widely across India.
4. Literacy and the level of urbanisation complete the picture: the highest and lowest literacy states show the spread of education, while the most and least urbanised states show how unevenly towns and cities have grown.
5. Taken together, these indicators let a candidate read the population map as a set of contrasts between crowded and sparse, urban and rural, and better and less literate states, rather than as a list of separate names.

Q9. Explain the factors that decide where the nuclear power stations and the iron and steel plants listed for map work are located. [7 marks]

1. The nuclear power stations to be marked are Kaiga in Karnataka, Kalpakkam in Tamil Nadu, Tarapur in Maharashtra, Rawatbhata in Rajasthan, Narora in Uttar Pradesh and Kakrapara in Gujarat.
2. Nuclear stations need large volumes of cooling water, which is why several of them, such as Tarapur, Kalpakkam and Kakrapara, lie near the coast or beside a major river.
3. They are also sited away from densely crowded areas for safety, and are spread across different states so that each region draws power from its own station.
4. The iron and steel centres to be marked are Jamshedpur, the site of TISCO, the Bhilai Iron and Steel Plant and the Vishakhapatnam Iron and Steel Plant.
5. Iron and steel plants are heavy and weight-losing, so they are placed near supplies of iron ore, coal and limestone, and near a railway line for carrying the ore and the finished steel.
6. Jamshedpur lies beside the Chotanagpur plateau, which holds a large reserve of mineral resources, and Vishakhapatnam combines mineral supplies with a port for importing and exporting steel.
7. Marking these centres therefore shows two different locational logics on one map: power stations tied to water and safety, and steel plants tied to minerals and transport.

Key takeaways

• India's mainland lies between 8°4'N-37°6'N and 68°7'E-97°25'E, with a central latitude of 23°30'N and a central longitude of 82°30'E.
• The standard meridian of India is 82°30'E, giving Indian Standard Time 5 hours 30 minutes ahead of Greenwich Mean Time.
• The three parallel Himalayan ranges are the Greater, Lesser and Outer (Shiwalik) Himalaya, north of which lies the Karakoram.
• The Western and Eastern Ghats meet at the Nilgiri hills; the Narmada and Tapi are the exceptional west-flowing Peninsular rivers.
• Major rivers to identify span both the Himalayan system (Indus, Ganga, Brahmaputra and tributaries) and the Peninsular system (Mahanadi, Godavari, Krishna, Kaveri, Narmada, Tapi).
• Nuclear power stations, named industrial centres and major ports are fixed points that must be marked exactly where the map list places them.
• Candidates must also be able to draw sketch maps for locational setting, relief, climate, population, industries and transport.
• A systematic sequence (read, locate, mark, label, index) avoids losing marks on map-work questions.

Test yourself

Which meridian is India's standard meridian, and why was it chosen?

82°30'E, because countries conventionally choose standard meridians in multiples of 7°30' of longitude.

Name the two points that mark the northern and southern extremities of mainland India.

Indira Col in the north and Cape Comorin (Kanniyakumari) in the south.

Where do the Western Ghats and Eastern Ghats meet?

They meet at the Nilgiri hills in southern India.

Which two major Peninsular rivers flow westward into the Arabian Sea, unlike most others?

The Narmada and the Tapi, both of which flow through rift valleys.

Name the three passes of the Western Ghats listed for map work.

Palghat, Bhorghat and Thalghat, the three passes in the Western Ghats that link the Deccan plateau to the Konkan and Malabar coasts.

List the six nuclear power stations to be marked on the map.

Kaiga in Karnataka, Kalpakkam in Tamil Nadu, Tarapur in Maharashtra, Rawatbhata in Rajasthan, Narora in Uttar Pradesh and Kakrapara in Gujarat.

Which strait separates India from Sri Lanka?

The Palk Strait, which lies between India and Sri Lanka, together with the Gulf of Mannar nearby.

Name the six cities to be identified in connection with population features.

Delhi, Mumbai, Chennai, Kolkata, Bengaluru and Ahmedabad, the six urban cities marked in connection with population features on the map.

Which two controls explain the climatic divisions shown on a climate sketch map of India?

The Himalayas, which act as a climatic divide, and distance from the sea, which makes the interior more continental than the coasts.