The price has been chopped 18% to $3.82 per million British thermal units on a gross calorific basis as against a previous level of $4.66 per MMBtu, the Ministry of Petroleum & Natural Gas revealed on Wednesday.

On a net calorific basis the price has fallen from $5.18 per MMBtu to $4.24 per MMBtu.

The measure will be in effect for six months, from 1 October to 31 March, it added.

India