104 Helicopter Squadron (Pioneer Rotarians) is a fighter squadron and is equipped with Mil Mi-35 and based at Suratgarh Air Force Station.

[2] The IAF S-55s were later phased out in 1966 inducting other helicopter types into service, such as the Mil Mi-35 model in 1990.

[3] As of November 2022, the Mi-35s of the Squadron is undergoing complete overhauls in Russia in two batches.

The first batch was already in Russia by then while the entire process is to be completed by mid-2023.

The overhaul would increase its service life by 6 years keeping them active beyond this decade.