Six firms submit bids for Package II of H&M, penstock liner works for 186 MW Tato -I Hydro Electric Project in Arunachal Pradesh April 17, 2025 | Project Updates A total of six firms have submitted bids for Package II: hydro-mechanical (H&M) works and penstock steel liner works for the 186 MW Tato -I Hydro Electric Project. This content is restricted.