Sorry for n00b question but is there an index like sensex or Nifty that includes the sum total of the entire stock market?

Profit Retrieving

I have just started to learn trading.

I made a profit of 3.45₹ on intraday. My statement shows 2.62 credited for net settlement equity,
and my available funds balance went from 200 to 199.20 at the end of the day.

Can someone kindly explain this and how I can withdraw the profits.

Thanks & Regards.

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