In summary:
India's long-running Maoist insurgency has increased in intensity in recent months. In April, 76 government troops were killed by Naxalite guerrillas in a brutal hit-and-run ambush near Chintalnar in Dantewada district in the central state of Chhattisgarh – the largest Naxalite strike in the group's 43-year history. Prime Minister Manmohan Singh has described the rebellion as 'India's gravest security threat.
An IISS Strategic Comment:http://www.iiss.org/publications/str...ist-challenge/

Which ends with:
In the longer term, India's growing prosperity offers a window to tackle the structural roots of the conflict – but there must be doubt about whether the government has either the will or the political capital to use this opportunity.