I did a bit of checking out videos prior to a business trip a couple of years ago, but as it turned out I had no time for anything other than the hotel gym. There is some stuff in the Western Ghats, and climbing clubs in both cities with whom it would for sure be worth getting in touch.
There's also a rather impressively large and steep wall visible from the Mumbai-Pune highway, the Duke's Nose. Doug Scott originally aided this in the 70s, but according to
Victor Saunders it now goes free bolted at 6b. Note, however, that Victor Saunders is a notorious Fowler partner-in-crime so his idea of adequate bolting may differ from yours or your friend's.