Prime Minister Narendra Modi has expressed happiness over the Puratchi Thalaivar Dr. M.G. Ramachandran Central Railway Station for being fully powered by solar energy.<br />'' <br />''<span style="color: #222222;">In a reply to a tweet by the Railways Minister Ashwini Vaishnaw, the Prime Minister said, happy to see the Puratchi Thalaivar Dr. M.G. Ramachandran Central Railway Station show the way when it comes to solar energy.</span><br />