Introduction India and Nepal share a unique friendship as neighbouring states, both the countries also share collaboration ties, facilitated by an open border and deep-rooted kinship and cultural ties. There has been an open cross-border migratory tradition. Nepal shares an approximately 1850-kilometre-long border with five Indian states: Sikkim, West Bengal, Bihar, Uttar Pradesh, and Uttarakhand. The India-Nepal Treaty of Peace and Friendship of 1950 forms the bedrock of the