Currency future trading

I purchased a usd inr future, for current month, can i sell it any day before expiry date.

also is it possible to sell it anytime in intraday trading

is there any extra charge needs to give if i want to sell the currency future

Yes, you can sell it anytime you wish or hold on to it until expiry. No extra charges..check this for charge list details (applicable if you are trading with Zerodha). 

Yes, agree with Karthik, you can sell it any it time.