@PRANIT01 Absolutely DO NOT do this. You need to get a PCC after the final date of leaving a country permanently. You don't get to take these chances and make such mistakes. You're not going to be a TR to PR candidate where you get dozens of second chances to correct mistakes.
You could try to go to any local police station and get fingerprinted. Take the fingerprint card with you to your home country and send it to the FBI address once you get back to your home country. You'd have to time this though, and get the fingerprints the day before you leave or something.
It is not a pain to apply for PCC from outside the US. It just takes longer (mine took 3 weeks). Just buy a fingerprint pad from amazon, print out the fingerprint card (on the FBI PCC webpage) on regular A4 paper, read the fingerprinting instructions carefully. I sent 10 different sets of fingerprints to be safe lol. You can definitely send more than one, so in case some come out unclear, they'll use the others. It took me an hour or so to do this at home.
However inconvenient this may be, it beats getting your application rejected or delayed because you sent an invalid PCC.