@venkatesh:Trust me,you get a loads of time to prepare for jee next year at nit trichy.And it doesn't matter which branch you take,the time consumed is the almost the same because the syllabus is the same in the first year.Plus, you will have more people preparing for the jeeI(i can bet many from your school may be preparing too-esp if you are dav/ps)..and about bits..it gives you loads of exposure..it is a really good college.