Extrapolating the thought of 150 to a population of 150 million is one of the reasons I don't really believe/read such surveys! Of course, it may have to do with the fact that I live in a country of >1 billion! Imagine any survey (apart from the census) for such a sample size?!
The "Indian" culture was abolished by the British during their colonisation hey-days! What is left is parrots able to mimic European ideals/philosophy without any connect with our ancestors!