Question

how did Tripura merge with the india Union and when?

Answer 1

On the advice of the Government of India, she dissolved the Council of Regency and became the sole Regent on 12 January 1948. More than a year later, on 9 September 1949, she signed the 'Tripura Merger Agreement', and with effect from 15 October 1949Tripura became part of Indian Union.