Implementation Of Rooftop On Grid Solar Pv System" Project Of 1300 Kwp Capacity At Ajni And Wardha Station On Roof Top Of Service Buildings And Residential Quarters, In Nagpur Division Central Railway Through Public- Private Partnership (Ppp) On Design, Build, Finance, Operate And Transfer (The "Dbfot") Basis And Supply Of Electricity To Railway Under Long Term Fixed Rate Ppa (I.E. For Period Of 25 Years After Commissioning Of Projects