EAC was first raised at Rani Kutir in Calcutta. Then it was shifted to Tezpur in 1963. By the end of 1963, the HQ was shifted to Shillong (Meghalaya). EAC controls air operations in the eastern sector which includes West Bengal, Assam, Mizoram and the other eastern states bordering Bangladesh, Burma and Tibet. Eastern Air Command (EAC) features permanent airbases at Chabua, Gauhati, Bagdogra, Barrackpore, Hashmira, Jorhat, Kalaikunda and Tezpur with forward airbases at Agartala, Culcutta, Panagarh and Shillong. EAC features AD squadrons consisting of the MiG-21 and ground attack squadrons consisting of the MiG-27.