A quick recap here
Union Carbide lucked out in the sense that this happened before the advent of 24x7 television news in India. So, to a large extent, most of India did not quite understand right away what a huge tragedy this was/is. And, India being India, well, soon after other tragedies took over dominating the news. And by the time all the likes of NDTV came along, Bhopal became old news, and the IT-cricket-al Qaeda/Pakistan well keeps on giving now.