Cyclonic storm Nilam that hit the Tamil Nadu coast on Wednesday evening, has moved north-westwards into Andhra Pradesh, having weakened considerably into a deep depression. 12 people are reported killed and 5 people are missing after Nilam struck the historic port of Mahabalipuram, 50 kilometres south of Chennai on Wednesday evening. But the bigger threat that Cyclone Nilam left in its wake is the still persistent danger of oil spill on the Chennai coast. Emergency operations are under way around Oil Tanker M T Pratibha Cauvery that ran aground off the coast of Chennai to prevent an oil spill.

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