if you want to convert your bitcoin to INR there are so many options you can easily convert your btc into INR and get your withdrawal in your bank account.
there are So many popular exchanges are:
wazirx
zebpay
bitbns
coindcx
they also provide UPI /IMPS/NEFT Services.
i personally use wazirx because of its fast withdrawal
I would request to op to please avoid using these exchanges at any cost if you are holding a significant amount of bitcoins or other cryptos. All of these exchanges require kyc and they are Indian exchanges. So they are obligated to share their customer details to the related government agencies upon request.
Always use websites like localbitcoins or Paxful or Bisq and stick to them. They will also ask KYC after you reach to a certain volume but they are not obligated to comply with Indian Law.