NEW DELHI, Jan 16 (Reuters) - India's Reliance Industries Ltd (RELI.NS) and a local unit of BP (BP.L) on Monday suspended an auction for gas from their deepwater block on the east coast following changes to the country's gas marketing rules, the pair said in a notice. India last week revised marketing rules for gas produced from deepwater fields that are difficult to explore, including capping the trading margin on such sales. Reliance did not respond to Reuters request for comment. A source said Reliance would revise the terms of auction process after the latest changes to the rules. Reporting by Nidhi Verma and Sarita Chaganti Singh; Editing by Toby Chopra, Kirsten DonovanOur Standards: The Thomson Reuters Trust Principles.

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