plz, can anybody tell me about any domain registrar which accepts payment from unverified paypal user as i dont have a credit card
Why don't you get a VCC and verify your Paypal account. It's very risky to use unverified Paypal account and there are some serious limits of its usage of course.
I agree with the advice to get your PayPal account verified if you possibly can. The best registrar, www.domainsite.com , will accept your payments anyway, though
Why not try: www.dynadot.com ? They accept unverified paypal and you can register your domain there..
namecheap.com accept payments from unverified accounts plus they are one of the best registrars around