1. First off, congratulations! You are going to a pretty good law school. Maybe practice reading books generally, as much as you can. Not necessarily law, politics, history, philosophy or whatever, even fiction should do. But keep up a reading habit! You very rarely are gonna get a time like this in your life again - maybe the only next occasion might be several years later, if you are good enough and lucky enough to secure a PPO before/during your final year, and you have those last few months of law school to relax in, knowing your job's secure. But there are many long and difficult years ahead, before that second (not guaranteed) happy phase of relaxation. This one has fallen into your lap, use it! Do whatever pleases you - playing a musical instrument, learning a new language... it really doesn't matter. Oh but obviously, if you are at school still, focus for a few months on your final school exams. It would be a shame to mess those up, now, wouldn't it?

2 and 3. Plenty of time for all that later. In fact, at this stage, I'd rather you didn't get into that too much. For one thing, you'll be straining your brain at a time when you should give it a well-deserved chance to relax; for another, you might misunderstand stuff, and unlearning stuff is much harder than learning it fresh. One thing you could usefully occupy yourself with, however, is building a skill foreign law firms tend to call 'commercial awareness' or 'commercial acumen' (they mean the same thing). That is, a high level of awareness of how the market operates, the factors that impact a business's performance and a law firm's place within the market (as a business). You are already reading newspapers, that's good. Maybe start reading some good financial/economics newspapers, if you can (Economic Times, Financial Times, for example). Again, not something that you need to do now or something that would destroy your life chances if you didn't do it now (as there's plenty of time to properly develop it), but useful to get started early. If you are ever actually thinking of a law firm career outside India - particularly in London - you might, at some point, want to pick up this book: All You Need to Know About the City, by Christopher Stoakes. Explains how the market works very well. Dead useful. It may seem more like a finance bros type of book, but trust me, it's as important for commercial lawyers, at least, to be good at talking about finance as it is for them to know anything else - and foreign law firms tend to look for that kind of knowledge.

4. Please do start playing tennis again, if that is what pleases you. Don't necessarily do it with any specific aim in mind, however, especially if you are looking for internships or law firm jobs in India. It won't help you. However, if you are looking to apply for something like the Rhodes Scholarship, which expressly puts value on sporting achievements, then go into tennis with all twenty-four guns blazing and horns blaring, spare no effort.

5. Really can't think of anything else. Maybe get yourself a good, new laptop?