We can't withdraw crypto to our wallets in any Indian exchanges except Unocoin if I am not wrong but someone made a post in the reddit that now they are allowing crypto withdrawals too but if someone opts in for crypto withdrawal then they can't use UPI anymore and only can use NEFT for depositing which I don't know why though. But looks good development?

And to activate this feature the user need to go through additional verification which is nothing but to provide 1 year bank statement which also said by the OP from Reddit thread.
P.S: I am not using coindcx and I recommend not to use it for others too because they suffered with hack recently.