I think IISC is one of the best Institute for Science graduates in India. The courses available at IISC are also diverse as seen here. http://www.ex-clu-sive.com/wiki.php?title=IISc#cite_ref-22
Admission in this premier institute is a dream come true for a science graduate because the admission exams like Jam exam are tough to crack. If there are any suggestions / questions for these student then you can discuss it here.