Probably the fastest and most secure way would be to find a local dealer, meet him in some coffee shop, sell your BTC or some other cryptocurrencies and wait for transaction to go through. All those payouts on bank account can easily be stuck and you could wait for weeks for transaction to go through, also those transactions are then traceable. Also, in my city there are few Bitcoin ATMs around which are also good way to cash put, but they have slightly higher fees then local dealers.