I don't know much about others but I'd definitely warn everyone to stay away from Zebpay. They scammed me of 27k. I have exchanged more than 25 letters with them. It's been more than a month and they haven't paid my funds back.
Throughout my complains, they have been telling me to be patient and now after more than 25 Emails exchanged, they are telling me that my funds have already been restored but I don't see anything.
So, I say, if you want to avoid heartache, stay far away from Zebpay. Go for Coinswitch, if you're into Indian exchange. It is very transparent compared to Zebpay.
Now, I am using Binance and I have not had a single issue with them. They have Indian Rupees INR exchange too.