Rates of commercial LPG - cooking gas used in hotels and restaurants - were hiked by ₹10 per 19-kg cylinder to ₹2,820, according to the oil companies Aviation turbine fuel (ATF) prices rose by ₹1.37 per litre from Sunday, and commercial LPG rates increased by ₹10 per 19-kg cylinder in step with firming international benchmarks, according to state-owned oil firms. ATF prices were increased to ₹138.50 per litre from ₹137.12 per litre.