August 5, 2011. State-owned NTPC said it plans to invest about Rs.1,00,000 crore for setting up of the country's largest hydro power project in Arunachal Pradesh. The proposed Siang Upper project would have about 9,500 MW generating capacity, enough to light up two cities like Delhi. NTPC's first hydropower project at Koldam in Himachal Pradesh is likely to be commissioned next year. The company is presently executing 1,700 MW projects in various states.