Why do people prefer trading in NSE over BSE?

Why do people prefer trading in NSE stocks over BSE when BSE is the oldest exchange and has more companies listed?

NSE has more volumes and liquidity, which makes it easy to trade big quantities, that is not the case with BSE, which has less volumes and liquidity. Other than this there is no difference.

Right, but why we have less volumes in BSE? What is the reason for all the traders going for NSE?

Becoz people believe in this