Not some "mainstream" part of India
Remember the Gateway of India attack in August in which one woman was killed and another injured? The women were from the north-east, and the media said they were from Manipur without really doing a fact-check. Uma had a thought provoking post following that incident titled Many Indias, in which she said:
So what questions does this raise about the way news is reported, on Independence Day weekend? Many things. For one: did the papers care to check whether the women were 'Manipuris' at all, or in fact Nagas from Ukhrul in Manipur (I recall that one paper actually referred to it as "Ukhril" and not Ukhrul); or did it matter just enough for them to highlight the fact that they are not from some "mainstream" part of India?
... since [the communists] had become the zamindars of West Bengal on a permanent settlement that would have shamed Lord Curzon, and also ended up having a go in Kerala and Manipur from time to time ...