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State-run ONGC has received the coastal regulatory zone clearance for setting up a seawater desalination plant at its Uran unit in Raigad, Maharashtra at a cost of Rs 266.40 crore, according to an official letter issued to the company. The proposal is to set up a seawater desalination plant with a capacity to process 20 million litres per day. The proposed site is about 380 meters away from the high tide line (HTL) of Arabian Sea, along the western coast of India. Desalination is a process to remove dissolved minerals from feed water sources such as seawater and brackish water. Desalination of seawater is being increasingly adopted worldwide to cope with the deficit in availability of potable water. In the letter, the environment ministry said it has given the CRZ clearance for establishing a desalination plant in Maharashtra after taking into account the recommendation of its expert panel.