Mumbai, Jan 12 (IANS) Guess how master blaster Sachin Tendulkar bathes at home? By his own admission, using just a bucketful of water - to waste a minimum quantity of the precious liquid.

He made the admission while shooting for a half-minute social awareness message for Mumbaikars to save precious water. Mumbai suffered a monsoon deficit last year, and the Brihanmumbai Municipal Corporation (BMC) has shot the clip to spread awareness among the Mumbai residents.

Sachin advised the people they must take only that quantity of water in a glass they require to drink and not waste it.

Elaborating, Sachin also said that his family has given up the luxury of shower for taking bath. Instead, each family member used just a bucketful of water for the daily bath, an official of the BMC said.

In the ad, Sachin will stress the need to conserve water to save the city, which is already plagued by nearly 30 percent water cuts - and faces the threat of more cuts in future.

Speaking in Hindi and Marathi, Sachin will convey an identical message "Paani ki raksha, Mumbai ki suraksha" in the ad shot by Eureka Films for BMC.

The commercial, directed by Meghnath Kulkarni, is expected to hit cinemas and television screens in the next 10 days.

Sachin is the BMC's brand ambassador for water conservation.

Sporting his traditional cricket gear, Sachin shot for the ad Sunday at the Mumbai Cricket Association ground in Bandra-Kurla Complex.

The BMC is optimistic that given Sachin's mega brand value and popular image among the masses, his water conservation campaign would have positive results, the official added.