The Indian Air Force (IAF) is replacing its old aircraft fleet in the eastern and north-eastern region of the country with Sukhoi and medium multirole combat aircraft (MMRC) in a phased manner under its upgrade programme.

IAF vice chief of air staff (ret) PK Borbora told the Assam Tribune that the renovation process includes airfields and advanced landing facilities, as well as helipads.

The IAF is carrying out the job in the states of Assam, Arunachal Pradesh and West Bengal.

Borbora added that the Tezpur, Assam, airfield has already been upgraded with the required infrastructure for maintenance and regular operation of Sukhoi craft and the process of upgrading Chabua Airfield for the same would be completed within this year.

The IAF is expected to complete the process of upgrading the advanced landing facility at Vijoynagar in Arunachal Pradesh by February 2011 for the landing of AN 32 carrier aircraft.