There are two ways to do so and they are common for all cross country visit...

1. Not using bitcoin : Have an international debit card (with MasterCard/VISA) from a Chinese bank (most HK banks will offer this). Top up your bank account with CNY. Withdraw INR from any Indian ATM.

2. Using bitcoin : Have a bitcoin debit card (e-coin.io, AnxBtc, WageCan etc.) and buy bitcoin with CNY to top it up. Use it to withdraw INR from any Indian ATM.