Silchar, Dec. 5 :    Silchar, Dec. 5:  The Oil and Natural Gas Corporation Limited (ONGC) has drawn up a Rs 4,162-crore plan to boost oil exploration and output which now stagnates at 35 million tonnes a year. ONGC's chairman-cum-managing director Bikash Chandra Bora told The Telegraph here today that the plan envisaged intensive natural gas exploration in the off-shore areas of Mumbai High in the Arabian sea, better oil recovery from the 450 million-tonne reserve fields throughout the country and overhauling of structure and equipment now deployed at the onshore blocks in Assam and Gujarat. He said 15 out of the 100 wells drilled in Mumbai High were producing 85 per cent of their total capacities. The new scheme plans to exploit the potential at Cambay basin, Gandhar, Lakwa, Rudrasagar and Geleki, he added. Bora said the ONGC-Videsh, the overseas wing of the corporation, has successfully drilled crude oil in Vietnam. It plans to expand operations in countries like Russia, Indonesia, Venezuela, Iraq and Algeria. He said the ONGC has bagged a global contract to drill three oil wells in Sylhet division in northeastern Bangladesh. The chairman, who is now on a two-day visit to the oil fields in Cachar district, assured that the corporation would expand drilling activities in the region on the basis of a recent pool of information on subsoil formations in the valley districts. The data was compiled following extensive geo-scientific seismic studies carried out at the headquarters of the ONGC's eastern region at Nazira and in Derhadun. According to Bora, ONGC's Adamtila and Banskandi gas reserves in Cachar district have been churning out 150,000 cubic metres of natural gas per day. Though no significant amount of oil was discovered in Cachar, Bora hoped that the next stage of spudding at Narayanpur and Shabaspur would yield rich dividends. To extract crude from the geologically-difficult Badarpur and Masimpur structures in Cachar region, the ONGC will use the state-of-the-art microbial enhanced oil recovery method to soften the sub-soil stratum for accessing the oil reserve. Bora, who is set to retire in May, said the ONGC will convene a crucial meeting at the end of this month with the Nagaland government to find a consensus on ending the six-year impasse in drilling in Nagaland, a potential oil-bearing state. Exploration in Nagaland was terminated in 1994 following a series of insurgent raids on ONGC installations. He admitted that S.C. Jamir's demand for joint exploration by the Nagaland government and the ONGC has given rise to a piquant situation. Jamir contended that Nagaland was vested with special powers under Article 371 of the Constitution regarding ownership and transfer of land and its resources. But the ONGC was only willing to pay royalty to the Nagaland government.