Thanks to everyone for their help in this matter... greenhorn man, u were great! Without those details it would have been difficult.
I've got the money back from this a-hole. I had reported the matter to the police, the case was there, everything was in place... but since now he has returned the money there's nothing police can do about it, so its over. Regarding the other frauds this guy has done, police won't act upon it as I am personally not involved in those and dont have any proofs. If TE wants, they can do it... but as an indvidual i cannot OR only the people that suffered will have to approach police for it.
Mods... if you're reading this, please ATLEAST add this guy into the fraudster's list in member's section? Also, i think you should do an IP ban. Even if it is a cyber cafe how does it matter? this cyber cafe is probably his own cafe (net tarang) where this person is doing fraud from. Moreover, even if some good chap is unable to access TE after IP ban, i believe its still okay. that person (i assume it would be only 1 or 2 guys) would access TE from some other cafe then. Request you to please look into this.
And once again, thanks to everyone who helped in this matter... its really good to see TE community working together to bring down such lousy fraudsters.