I presume you are doing the five year BALLB. I'd say that with a clear, comfortable first division you stand a very good shot at the University of London colleges. Your application could be beefed up with some good internships, moots and other extra-curriculars, and of course a solid SOP.
I don't know about Trinity, Dublin, but this is my ranking of the London colleges, based on what I've read and heard
This is a very broad ranking though. If one looks at specific specializations, the ranking may well change. QM for instance is regarded as very good with commercial laws and is known to have the best IP faculty. Same for UCL, I think.
The course structure in most UK colleges is very similar to the Indian course structure. LSE, I understand is closer to the American model and therefore offers more options and flexibility. Also, in terms of faculty and reputation, LSE scores over the other colleges. This opinion is based purely on what I've read and hearsay, so the personal experiences of people who've studied in these places may be very different.