I have obtained 49.6% aggregate in my law graduation, will I be eligible to apply for LL.M in ny colleges in U.K.If yes then can u plz mention the name of that college.

What country is this qualification from? Are you aware of its equivalence in the uk? If you have a 2:2 equivalent and are willing to pay the money, most law schools (except oxbridge) will accept you off the back of a half decent personal statement.