What is a stock exchange, and what happens there? Explain with reference to India.

A stock exchange is a marketplace where financial securities like stocks are traded. The actual buying and selling of shares takes place at the stock exchange. In India, the Bombay Stock Exchange (BSE) was established in 1875 and is one of the oldest stock exchanges in the world. Back then, share transactions were conducted manually using paper tickets, but in the modern world, these have been replaced by digital transactions using advanced computers and other devices.