Not withstanding what's said about ill-treatment of the locals by the wealthy rich Indians, it's important to note that Indians are only traders still and do not run governments a la the British in India and hence cannot build infrastructure or any of those things mentioned in Milind's comments. Of course, there is no doubt they can contribute to the country's welfare through individual philathrophic actions and it's important to make such contributions in their own interest and in the interest of their community.
