Ranganathan said the government has over the past few years taken several policy measures to enhance exploration and production of oil and gas.
Demand fell by as much as 70 per cent but after unlock and lifting of restrictions, it has come back to 72-80 per cent.
Detailed SOPs / protocols have also been devised for ensuring hygiene and social distancing norms and promoting use of masks at the project sites and work stations.
Laying of pipelines has been completed till Gaya and in Ranchi, Bokaro, Rourkela and till Paradip, work is in different stages.
Sources said the dues being sought are more than three times the networth of GAIL and several times the actual revenue earned.
Revenue rose to Rs 18,763.87 crore in the fourth quarter of the 2018-19 fiscal year when compared with Rs 15,430.69 crore net profit in the year-ago period.