Just finished reading Dreaming in Hindi, for these excerpts, which deals very much with the same subject, and not surprising therefore that this should catch my eye: Lera Boroditsky writing in the Edge:

For a long time, the idea that language might shape thought was considered at best untestable and more often simply wrong. Research in my labs at Stanford University and at MIT has helped reopen this question. We have collected data around the world: from China, Greece, Chile, Indonesia, Russia, and Aboriginal Australia. What we have learned is that people who speak different languages do indeed think differently and that even flukes of grammar can profoundly affect how we see the world.

More here

Surely India would be a goldmine for such data...