The units were commissioned in 1982, 1985 and 1990.

The first unit was completed in a record time of 37 months and commissioned on 17 July 1999.

The first unit of power plant was commissioned in 1978.

The units were commissioned in two stages during the period of 1984 to 1995.

The first unit was commissioned in 1944 and the last in 1951.

The first unit was commissioned in 1961 and the last in 1966.

During March 1985, the second unit was commissioned and in later years four more units were added.

The first unit of identical capacity was commissioned in September 2011.

The first two units were commissioned in 1998 and 1999 respectively.

Six squadron members were killed in action during the time the unit was commissioned.