Is it possible that transaction will be sent to one private key but every user in network will get ' different ' public key ? So that I could get to know who sent it but sender will get the transaction data only related to their transaction

 Yes, it's possible to achieve this kind of privacy in a blockchain system through techniques like ring signatures or zero-knowledge proofs. These cryptographic methods allow transactions to be verified without revealing the identity of the sender to other participants on the network. This way, the sender remains anonymous, but the receiver can still verify the transaction. It's a key feature in privacy-focused cryptocurrencies like Monero and Zcash.