New Delhi: Commercial LPG cylinder prices have been increased by Rs 111 per unit from January 1 across major Indian cities, marking the steepest hike since June last year.

Following the revision, a 19-kg commercial LPG cylinder now costs Rs 1,691.50 in Delhi, Rs 1,642.50 in Mumbai, Rs 1,795 in Kolkata and Rs 1,849.50 in Chennai.

Prices of domestic LPG cylinders, however, remain unchanged. A 14.2-kg household cylinder continues to be priced at Rs 853.

Petrol and diesel rates have also remained steady after a Rs 2 per litre cut announced in March last year. Currently, petrol is priced at Rs 94.72 per litre in Delhi, while diesel costs Rs 87.62 per litre.

Meanwhile, aviation turbine fuel (ATF) prices were reduced by 7.3 per cent, following three consecutive monthly hikes. According to state-run fuel retailers—Indian Oil Corporation, Bharat Petroleum and Hindustan Petroleum—the ATF price in Delhi was lowered by Rs 7,353.75 per kilolitre to Rs 92,323.02 per kilolitre.

In Mumbai, ATF now costs Rs 86,352.19 per kl, while prices in Chennai and Kolkata have been revised to Rs 95,770 per kl and Rs 95,378.02 per kl, respectively.

ATF prices were last increased by Rs 5,133.75 per kl, or 5.4 per cent, on December 1, after earlier hikes of around 1 per cent in November and 3.3 per cent in October.

The latest reduction is expected to provide some relief to airlines, as fuel expenses account for nearly 40 per cent of their operating costs.

State-owned fuel retailers revise LPG and ATF prices on the first day of every month, factoring in international fuel prices and currency exchange rates.