This will not be applicable to the undergraduates who will graduate from IISc !
If you are undergraduate (B.Sc/B.Tech/B.E) student and interested in doing research, read this post first. The post ends with, "spamming the inbox of professors with 'I want to do summer research' doesn't serve any purpose. Write compelling, personalized and relevant emails that convey your goals and intentions to specific professors whose work interests you. It shows when you have taken the effort to look through their website and read about the projects that they work on. Ask at least a few people to review and proof-read your application."
I could not have put it better. I receive around 10 emails a week from undergrad students for the summer project. Though our department website has clear instructions for summer trainees, no one seems to read them. Prospective candidates should at least read the websites of faculty before applying to them directly. I also request one should proofread the application. Grammatical errors can be forgiven, typographical errors can not be excused. However, this is not restricted to undergraduates. See the following email I received for a post doctoral position,