Srinagar, Feb. 11 -- Kashmiri Mathematician Bilal Ahmad Mir has become the first person to manufacture India's high-tech solar car, "RAY," which was unveiled in Srinagar on Monday.Mir famous for his groundbreaking innovations, launched the revamped version of his solar car with a brand-new design, enhanced efficiency, and advanced technology."It has been my dream since 2009 to establish Bilal Innovative Solar Automobile (BISA) and manufacture a unique version of a solar-powered car," said the mathematician-turned-engineer.However, he said that there were many ups and downs during all these years. "In my first technical innovation, I converted a vehicle into a hydrogen gas version but due to some technical snags later I converted it into E...