I see. So it's definitely a good idea to do this, right? I'm asking for myself too. I want to do pure science but I'm doubtful about IISER as it's a 5 year course and I have already dropped a year. If, fortunately, I get B.S Chem at IITB, it's totally safe, and I'm not missing anything, right?
(P.s I'm also kind of attracted to the life at IITB. It's amazing. Of course, the lifestyle is not a priority, but it's appealing )