1. Stock Market is a place where buyers and sellers of Stock and instruments
2. Stock Market is a secondary market
3. There are two major exchanges in India: BSE and NSE
4. Share price is determined by buyer and seller who are participants of market; influenced by demand and supply
5. Brokers helps to buy and sell shares.
6.Trading happens thru trading account offered by broker, and bought shares deposited into Demat.
7. Demat Accounts are managed by CSDL/NSDL, which are repositories for Shares.