IGL's stock surged 7.74 per cent to settle at Rs 266.70 on the BSE. During the day, the scrip gained 11.49 per cent to Rs 276.
At the NSE, the stock rose by 7.43 per cent to end the trade at Rs 266.10.
"CNG and PNG prices will be cut. Also allocation of gas from domestic fields to city gas entities has been increased to 100 per cent from the current 80 per cent. This led to spike in IGL stock," Ashika Stock Brokers Research Head Paras Bothra said.
Oil Minister M Veerappa Moily said government has now decided to meet all the requirements of CNG and piped cooking gas retailers in the country from domestic fields, sparing them the need to buy costlier LNG (liquefied natural gas).
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Prices of CNG, or compressed natural gas, in the national capital had been hiked by Rs 4.50 last month to Rs 50.10 a kg after retailers such as Indraprastha Gas Ltd (IGL) were forced to buy a fifth of their gas (LNG) requirements from overseas.
Moily said allocation of gas from domestic fields to city gas entities has been increased to 100 per cent from the current limit of 80 per cent.