Need help finding Indian authors to read in an English class

We have two different India-related classes at my school - one is more literature based, one more historical. Both teachers are looking for novels for high school students. We've discussed many authors including Jhumpa Lahiri, Rohinton Mistry, Amitav Ghosh, and Arundhati Roy.

If you know anything about the Indian English literature category, would you give us some guidance? What will captivate high-school girls? I teach in a girls school.