Stock Market is place where buyers and sellers meet to exchange of shares. company needs a place where he can meet the public to keep them also share holder of the company. and the people who bought shares through IPO can sell them in secondary Market. In share market Public can invest or trade regular basis. SEBI is there to check any malpractice happening in the market to make traders safe. company provides dividend in profit, split the share to increase more. Bonus of shares given without additional cost. Nifty comes under NSE and Sensex comes under BSE. to know about Nifty performance top 50 companies will consider. In BSE top 30 companies will be taken