"However, the third AC train that arrived in January, based on T-18's model with underslung motors, increased capacity and solar panels, will have to undergo extensive trials as it will need fresh sanctions," a top official said.

Also read: Mumbai: Local train derails at Kurla Station, no injuries reported

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The WR had launched the first AC local on December 25, 2017 and has earned a total revenue of almost R24 crore till April 30 this year. The new AC locals have several features suggested by commuters in their feedback, including wider gangway so more people can stand comfortably when the train is crowded, and improved luggage racks.

A senior official said it will be the first local train to have the largest passenger capacity ever as all motor equipment had been put near the wheels, clearing the area for passenger space. The AC local with undeslung motors can ferry over 6,500 passengers in a single journey.

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