The Supreme Court of India has upheld the constitutional validity of Section 6A of the Citizenship Act, which was inserted in 1985 via amendment to implement the Assam Accord. This provision grants Indian citizenship to immigrants who entered Assam before January 1, 1966, and allows those who arrived between January 1, 1966, and March 25, 1971, to apply for citizenship after meeting certain criteria. Immigrants entering Assam after March 25, 1971, are considered illegal. The five-judge Constitution Bench delivered the decision in a 4:1 majority verdict, with Chief Justice D.Y. Chandrachud and Justices Surya Kant, M.M. Sundresh, and Manoj Misra concurring. Justice J.B. Pardiwala dissented, declaring Section 6A unconstitutional with prospective effect. The ruling may have significant implications for the National Register of Citizens (NRC) in Assam and addresses the state's unique challenges due to illegal immigration.