Kolkata Metro Rolls Out Energy-Efficient BHEL Rake

Kolkata Metro has made some big improvements to one of its trains.

They fixed up an old train, called the BHEL rake, to make it more energy-efficient and compatible with new signalling systems.

This train can now support something called regeneration, which helps save energy.

They also introduced a new train, the 10th Dalian trainset, for passengers to use.

These changes are part of Kolkata Metro's efforts to make their trains better and more efficient.