Hi,
I am a student from India, doing my final year of 5 yrs. BALLB. I wanted to know what are the academic requirements(in terms of marks and additional certifications) to secure an admission to an LLM from the UK or USA.

You should be in the top 10 % of your class. If you have a first class degree, the chances of getting admission in a good University is bright. You need to have good recommendation letters. Getting admission to an University in UK is a lot easier than getting admission in US. The cost of studing in UK is almost half the cost of studing in US.Degrees from US generlly are much more prestigious in India, than degrees from UK Unless it is from Cambridge, Oxford or the like.