The government on Saturday hiked export duty, or windfall tax, on diesel to Rs 55.5 per litre and on aviation fuel ATF to Rs 42 a litre.

The duty hikes would be applicable with immediate effect, the finance ministry said in a notification. The government had, on March 26, imposed an export duty of Rs 21.50 a litre on diesel, and Rs 29.5 per litre on Aviation Turbine Fuel (ATF). The duties were levied to increase domestic availability of the fuel amid the war in West Asia.