The price of jet fuel, also known as aviation turbine fuel (ATF), at Delhi was cut by Rs 1,285.89 per kilolitre, or 1.81 per cent, to Rs 69,747.98 per kl, according to Indian Oil Corp, the nation's largest fuel retailer.
This is the third reduction in jet fuel rates since April. Declining international oil prices and the strengthening of the rupee against the US dollar have made imports cheaper.
In Mumbai, jet fuel costs Rs 71,940.36 per kl as against Rs 73,306.89 per kl previously, IOC said. The rates vary because of differences in local sales tax or VAT.
No immediate comments were available from airlines on the impact of the price cut on passenger fares.
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Separately, the price of non-subsidised LPG, which customers buy after using up their quota of 12 subsidised cylinders, was cut by Rs 23.50 per cylinder, the fifth straight reduction in rates since February.
Each non-subsidised 14.2-kg cooking gas cylinder will now cost Rs 905, down from Rs 928.50, in Delhi.
The rates were cut on February 1 by Rs 107 -- from Rs 1,241 per cylinder to Rs 1,134, by Rs 53.5 per cylinder in March to Rs 1,080.50, by Rs 100 to Rs 980.50 in April and by Rs 52 last month.
IOC said losses on LPG have come down to Rs 432.71 per subsidised cylinder from Rs 449.14 in the previous month. The loss was Rs 762.50 in January.
The three fuel retailers -- IOC, Hindustan Petroleum Corp and Bharat Petroleum Corp -- revise jet fuel and non-subsidised LPG prices on the first of every month, based on the average international prices in the preceding month.