The annoying blaring sound and smoke from the long-distance trains are almost a thing of the past on Central Railway, with the upgradation to the Head on Generation (HoG) technology. According to officials, the system is not just less polluting, but also saves up on the cost.

The HoG system, which replaces the diesel locomotives, draws electricity from the overhead electric lines to run the train's air conditioning, lights, fans, etc. Over the past year, Central Railway (CR) modified the technology of all 63 Linke Hofmann Busch (LHB) coaches of 58 trains. Only three-four trains are left to be modified now.