In the south there is a growing communist insurgency consisting of impoverished people who have been long denied their rights and have taken up arms in protest (see: http://en.wikipedia.org/wiki/Naxalite-Maoist_insurgency ). The interesting thing is that these groups have entrenched their power by acting like an ad-hoc government collecting taxes, dispensing justice and winning the confidence of the villagers through goodwill schemes that the government should have implemented.
Yes, that's very interesting. How interesting what wonderful people they are. Except that they are terrorists and mass murderers. To say that they have gained power by being saints rather ignores the salient detail that they also gained power with extreme violence. Strangely, their acts of terror against police and civilians alike are documented on the very page you linked...