How did the State government of West Bengal respond to the Naxalite groups?

They took stringent measures to suppress the Naxalites.

There was a general atmosphere of dissatisfaction with the prevailing economic situation all over the country. In such a context non- Congress opposition parties were able to organise popular protests effectively. Instances of students’ unrests that had persisted from the late 1960s became more pronounced in this period. There was also an increase in the activities of Marxist groups who did not believe in parliamentary politics. These groups had taken to arms and insurgent techniques for the overthrow of the capitalist order and the established political system. Known as the Marxist-Leninist (now Maoist) groups or Naxalites, they were particularly strong in West Bengal, where the State government took stringent measures to suppress them.