To sell Ethereum in India, the best way is through a trusted Crypto exchange like WazirX. Before registering on an exchange, ensure ETH is listed and your desired currency (Eg INR), can be withdrawn to your bank account. Transfer ETH to the exchange, then sell it by placing an order. Finally, you can withdraw the money from the exchange. For more information, click here: https://wazirx.com/blog/5-things-to-keep-in-mind-while-buying-or-selling-ethereum/