'Full electrification of railways within next 3-4 years'

"Railways is continuously increasing electrification for a better, pollution-free future. The target of electrification of the entire railway in the next 3-4 years has been set, making it the world's first carbon emission-free railway, along with that the railways is producing solar energy for their power needs," Union minister Piyush Goyal said in a tweet.

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