Tell me the impact of stock market operations on Indian economy pls?

I understand that Banking operations directly have impacts on the Indian economy , Like wise what is the role of stock market ? How does stock market operations affect Indian economy ? And what is the need for stock markets ? Are stock markets govt organisations or pvt concerns ? Pls tell me elaborately
Update: I understand that Banking operations directly have impacts on the Indian economy , Like wise what is the role of stock market ? How does stock market operations affect Indian economy ? And what is the need for stock markets ? Are stock markets govt organisations or pvt concerns ? Pls tell me elaborately
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