Both maps on the left and right show the NWest state of India, viz., West Bengal. I stared at the map on the left for a long time trying to find the birthplace of the Naxalite movement. As we know the movement took its name from the village in which conflict broke out in May 1967.
But it failed to dawn on me that a "Tourist Map" might not want to advertise the original home of a revolutionary movement until finally...
I ran across a map (on the right) which explicitly shows the location of Naxalbari in the north part of West Bengal.

The country to the right of West Bengal is Bangladesh, widely known for its poverty esp since George Harrison and Ravi Shankar gave the famous Concert for Bangla Desh in 1971 which raised a quarter of million dollars for a relief fund.

It's interesting that West Bengal shares a long border with Bangladesh which, ever since the influential 1971 Bangladesh concert by George Harrison and Rave Shankar) has become symbol of poverty, suggests that West Bengal's poverty might be of a similar magnitude, in which case this location of the emergence of the Naxalite movement might not be a surprise.
Since West Bengal is the Indian state closest to China, this location might also help explain why the movement (founded in 1967 before Chairman Mao died in '76) is identified more with the thoughts of Mao than Lenin.
The Economist (w/o evidence) claims that the place where Naxalite was founded is no longer sympathetic to the movement.
That's a bit different than what the tourist ad (capitalists with money on the line) suggests.

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