Via Pradeepkumar: Frontline has a rather dry report by Parvati Menon and Ravi Sharma on the academic and research institutions in Bangalore, with additional details -- history, activities, achievements -- about a few of them.
IISc just gets a mention in the history section of the article; since it gets mega-coverage in Indian media, the reporters probably chose to focus on some of the other institutions. A more egregious omission, however, is that of a rising international star: the National Centre for Biological Sciences (NCBS). Menon and Sharma don't even mention it in their report!
BTW, in what way can the National Assessment and Accreditation Centre (NAAC) be deemed to be a research institution? Its core area of activity (which it's not doing a great job of) is to visit colleges and universities, assess their capabilities and infrastructure, and give them some sort of a grade. What research does this institution do?