Anil Ambani-led Reliance Power will invest over Rs 12,000 crore for executing 2,520-MW hydro power projects in Arunachal Pradesh, to be commissioned in the next Five Year Plan (2012-17).

"Reliance Power has signed an agreement with the Arunachal Pradesh government for developing 2,520 MW of hydro power projects in the state," a Reliance Power spokesperson said.