When I sell shares of some company on Zerodha, can I use the money earned on T day itself to buy shares of other companies?

When I sell shares of some company on Zerodha, can I use the money earned on T day itself to buy shares of other companies?

Once you sell share you can buy other shares, futures, option etc instantly. Only cash withdraw take 2 day

I hope there are no separate/extra charges for using the money earned from selling some shares to buy some other shares on T day itself, instead of waiting for the T+2 day to use the money for buying. Both sell and buy are being done in CNC mode here.

Is this some sort of margin money which is made available by Zerodha for CNC trades, since I had heard that margin is not available for CNC trades?

Ok, thanks !

No margin for equity purchase. If share value is 1000 you need to pay 1000rs to get 1 share