Dozens of Maoist guerrillas were killed in central India by government forces on Sunday, one of the deadliest operations in recent years against leftist rebels who have waged an insurgency that has ebbed and flowed over several decades.

       The operation, in the forested Bijapur area in the state of Chhattisgarh, was carried out against the so-called Naxalite movement, and left 31 rebels dead, along with two members of the police forces, according to the area’s police chief, Jitendra Kumar Yadav.

       Chief Yadav said the authorities had also recovered a number of AK-47 assault weapons and several other automatic rifles after the clashes.

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