to the NSE and BSE differences, let us start by finding out what stock markets and stock exchanges are. Stock market is a secondary market wherein trading in stocks takes place. After an Initial Public Offer (which takes place in the primary market), companies can list their shares on the stock market and people can choose to buy these stocks.
A market where shares are publicly issued and traded is known as a share market. The answer to ‘what is the stock market is pretty similar to that of a share market. The key difference between share markets and stock markets is that the former only allows one to trade shares. The latter allows you to trade in financial instruments such as derivatives, bonds, mutual funds, as well as shares of listed companies.