India's ONGC has been given Environment Clearance (EC) for its onshore exploration, development and production of oil and gas in 100 locations in the non-forest area of Assam. According to official documents, the firm is investing Rs 3,500 crore in the project. "The EC is however subject to obtaining prior permission from the wildlife angle, including clearance from the Standing Committee of the National Board of Wildlife", informed ONGC.