The correct answer is: B. 1956.
The Bombay Stock Exchange (BSE) was established in 1875, making it the oldest stock exchange in Asia. It was originally known as the Native Share & Stockbrokers’ Association. In 1956, the BSE was recognized on a permanent basis by the Government of India. The BSE is now one of the largest stock exchanges in the world, with a market capitalization of over $2 trillion.
Option A is incorrect because the BSE was established in 1875, not 1950.
Option C is incorrect because the BSE was recognized on a permanent basis in 1956, not 1957.
Option D is incorrect because the BSE was recognized on a permanent basis in 1956, not 1965.