New Delhi, May 4 -- New Delhi: Union housing and urban affairs minister Manohar Lal has called for the expansion of renewable energy use within metro operations, proposing even cargo compartments for small businesses, to help India's energy transition goals.

Addressing an event in the national capital, the minister said that the continued expansion and modernization of metro rail infrastructure is key to building smart, inclusive, and future-ready urban centres. He was speaking at the 31st foundation day of Delhi Metro Rail Corporation (DMRC) on Saturday.

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He said that urban transport systems like the Delhi Me...