Everything is ready for project except hardware!
I have one doubt!
I am planning to use transmitter of Arduino Uno and receiver of Arduino Nano. Will it work? Both Uno and Nano obey for same program? (The transceivers used are Nrf24lO1 pa+lna!)
Yes, it will work, in much the same way that you can send an email from a Mac to a Windows PC. The type of PC doesn't matter as long as they use the same protocol. As you haven't shared any details in that direction, I would say that if you have coded correctly, then it will work.