Ramachandra Guha in The Nation:
In recent years the Maoists have mounted a series of bold attacks on symbols of the Indian state. In November 2005 they stormed the district town of Jehanabad in Bihar, firebombing offices and freeing several hundred prisoners from the jail. Then, this past March, they attacked a police camp in Chattisgarh, killing fifty-five policemen and making off with a huge cache of weapons. At other times, they have bombed and set fire to railway stations and transmission towers.
The Indian Maoists are referred to by friend and foe alike as Naxalites, after the village of Naxalbari in north Bengal, where their movement began in 1967. Through the 1970s and ’80s, the Naxalites were episodically active in the Indian countryside. They were strongest in the states of Bihar and Andhra Pradesh, where they organized low-caste sharecroppers and laborers to demand better terms from their upper-caste landlords. Naxalite activities were open, as when conducted through labor unions, or illegal, as when they assassinated a particularly recalcitrant landlord or made a daring seizure of arms from a police camp.
Until the 1990s the Naxalites were a marginal presence in Indian politics. But in that decade they began working more closely with the tribal communities of the Indian heartland. About 80 million Indians are officially recognized as “tribal”; of these, some 15 million live in the northeast, in regions untouched by Hindu influence. It is among the 65 million tribals of the heartland that the Maoists have found a most receptive audience.