Maybe abuse is more prevalent within Indian communities not because the male is more chauvinistic but because the women are more timid and docile?
I think that we need to stop saying "Indian" and then start looking at the segments of the Indian population that this seems to occur most often.
I suggest that it might be more prevalent in the rural areas where there are fewer employment opportunities for women, so they are more dependent on their menfolk (not only husbands by the way but even fathers and brothers).
is this a feature of life for more urbanized Indian women who live in and around G/T which offers vastly more scope for women to be independent? This means they marry when they want to, to whom they want to, and if that person is a bad man they can also leave that person. They likely have more social support networks to enable them to deal with the situation, and operate within a less conservative environment. It is also easier for them to resist attempts by their families (their own and the in-laws) to control their lives.