Manipur did have a history of violence and separatism but the Indian State has been low-key in its response. No heavy weaponry is used, no aircraft or armoured vehicles are deployed, and joint operations are conducted along with the local police.
The name of the military operation in Manipur was
Hifazat-IIQUOTE
Operation Hifazat-II (Manipur)
The state of Manipur lies to the south of Nagaland and abuts southern Assam from the west—to Manipur’s east is Myanmar. Ninety percent of the former princely state is covered by hill ranges; except for the Imphal valley, where the majority population of Meitis live. The tribes of the hill districts received protection of their land and job reservations under the Scheduled Tribes status (denied to the Meitis)—to cap the grievances of the Meitis statehood was not granted to Manipur until 1972. The early insurgents of the United National Liberation Front (UNLF) were defeated and pacified as a result of the Bangladesh liberation war in 1971, where their government-in-exile had been based. Some of their cadres received training, and a socialist indoctrination, from the Chinese and formed the Peoples Liberation Army (PLA) in 1978. Other groups with socialist leanings (PREPAK, KCP) also became active forcing the hand of the central government—Operation Hifazat (1980-82) defeated and dispersed these groups. Militancy was revived in the nineties after intelligence agencies of Pakistan and Bangladesh became active in the northeast. The hill tribes formed their own insurgent groups and fought the Meitis—and each other. Operation Hifazat II has continued through the nineties to pacify the troubled state.
Orbat:
The Eastern Command’s 3 Corps, headquartered at Dimapur (Nagaland), looks after the states of Tripura, Mizoram, Nagaland, Manipur, and the hilly area of lower Assam. The Corps comprises the 57 Mountain Division at Silchar and the 23 Infantry Division at Ranchi (in faraway Bihar) supported by an artillery brigade. In 2001-02 the entire 3 Corps was moved to the western border for Operation Parakram (with the 57 Mountain Division going to J&K) but has since returned after the end of that standoff. This move was made possible by the abundant police and paramilitary forces present in the northeastern states—Manipur has 19 battalions of the Assam Rifles, 8 battalions of the CRPF, and 3 battalions of the BSF. The state police are supported by the locally raised Manipur Rifles and the India Reserve Battalions (IRB).