(10,000 acres) to Bangladesh. According to July 2010 joint census, there were 14,215 people residing in Bangladeshi enclaves in India and 37,269 people residing in Indian enclaves in Bangladesh. The people living in these enclaves without a nationality were allowed to choose their nationality. The Constitution (119th Amendment) Bill, 2013 was introduced in the Rajya Sabha, the upper house of the Parliament of India, on 18 December 2013. Nationalist groups in Assam strongly opposed the bill, which would cause India to lose 10,000 acres of land, but Indian Prime Minister Narendra Modi supported it because it would make the border with Bangladesh easier to manage. The parliament panel, Standing Committee on External Affairs, approved the bill in November 2014. The Rajya Sabha approved the constitutional amendment on 6 May 2015, and the Lok Sabha approved it the following day. President of India Pranab Mukherjee gave his assent to the Act on 28 May 2015. On 6 June 2015, Modi ratified the agreement during his visit to the Bangladesh capital Dhaka. In the presence of Modi and Bangladeshi Prime Minister Sheikh Hasina, the foreign secretaries of the two countries signed the instruments of the land exchange. The exchange of enclaves and land parcels in adverse possession, and the boundary demarcation, was implemented in phases between 31 July 2015 and 30 June 2016. The enclaves were to be exchanged at midnight on 31 July 2015 and the boundary demarcation was to be completed by 30 June 2016 by Survey Departments of the respective countries. The transfer of enclave residents was expected to be completed by 30 November 2015. Indian and Bangladeshi officials conducted a field survey of enclave residents between 6 July 2015 and 16 July 2015. Seventy-five teams, made up of one Indian and one Bangladeshi member each, were tasked with conducting the enumeration. Twenty-five teams surveyed the Bangladeshi enclaves which would be transferred to India, while 50 worked on the Indian enclaves that would be transferred to Bangladesh. As the enclave residents were allowed to choose citizenship of either nation, by 13 July 2015, 100 families residing in the Indian enclaves applied for Indian citizenship, while none of the residents of the Bangladeshi enclaves chose to go to Bangladesh. New citizenship, if chosen, took effect from 1 August 2015. Nearly 14,000 people living in the former Bangladeshi enclaves became Indian citizens, while about 36,000 people living in the former Indian