When was the Indian State of Assam formed?

The Correct Answer is Option 1, i.e. 26 January 1950 . The formation of Indian State Assam was on 26 January 1950. Assam became a constituent state of India with the partition of India in 1947. The Assam District of Sylhet (excluding subdivision Karimganj) was given up to East Pakistan, which later became Bangladesh. India's government, which has the unilateral powers to change a state's borders, divided Assam into several states within the boundaries of what was then Assam, beginning in 1970. In 1963 the district of Naga Hills became India's 16th state under the name Nagaland.