Eastern Command
Eastern Command is headquartered at Calcutta and is responsible for counter-insurgency operations in Assam. It consists of the III, IV, and XXXIII Corps.
The short 1962 Border War with China dictated that no matter what the state of electronic communications, higher directive control should be exercised from geographical proximity. Headquarter Eastern Command had tried this from Lucknow, some 1,100 kilometres distant from Walong. Wiser after the war experience, Headquarter Eastern Command went back to Fort William, Calcutta.
| City | Latitude | Longitude | ||||
| Eastern Com | Calcutta | 22°34'N | 88°22'E | |||
| III Corps | Dimapur, Nagaland | 25°54'N | 93°44'E | |||
| U/I Artillery BDE | U/I Location | __°__'N | __°__'E | |||
| 23rd Infantry Division | Ranchi | 23°00'N | 85°00'E | |||
| 57th Mountain Division | Silchar | 24°49'N | 92°48'E | |||
| IV Corps / Gajraj Corps | Tezpur, Assam | 26°38'N | 92°48'E | |||
| U/I Artillery BDE | U/I Location | __°__'N | __°__'E | |||
| 2nd Mountain Division | Dibrugarh | 27°30'N | 95°00'E | |||
| 5th Mountain Division | U/I Location | __°__'N | __°__'E | |||
| 21st Mountain Division | Rangia | 26°28'N | 91°38'E | |||
| XXXIII Corps | Siliguri | 26°42'N | 88°26'E | |||
| U/I Artillery BDE | U/I Location | __°__'N | __°__'E | |||
| 17th Mountain Division | U/I Location | __°__'N | __°__'E | |||
| 20th Mountain Division | Binaguri | 26°46'N | 89°03'E | |||
| 27th Mountain Division | U/I Location | __°__'N | __°__'E | |||
