Is there any chance of me getting back my Btc from an address which I was not supposed to send or even a chance of getting in contact with the receiver ?
It's hard to recover it again. But how do you send your BTC to Wrong Address? Each address is Unique and the error of a letter or number is automatically rejected by the payment processor. It is therefore impossible that it be passed. You also have malware on your computer that automatically appears BTC add a hacker when you can send.