Well if u r in Nepal then go to nepal police but if u r in other country (@ dalbhattarkali) go to your nearest police station and ask them to do the biometrics for you..
well like i said if you are in Nepal it definitely will take at-least 6 months to get the police report back. Even in the us it took my friend 4 months to get it back.
FBI clearance only shows your arrest records and nothing else.