Tripura has announced a plan to invest around Rs 100 crore to restore and modernise the Dumboor hydroelectric project in Gomati district, with work expected to begin by December 2026 after technical assessments and preparatory formalities are completed.
Power minister Ratan Lal Nath announced the project during a ground-breaking ceremony for the restoration and modernisation initiative. The National Hydroelectric Power Corporation (NHPC), working with the Tripura government, has completed a technical assessment of the damaged facility to identify the work required.
The Dumboor project originally had an installed capacity of 15 MW across three generating units. After the proposed upgrade, the plant is expected to generate about 10–11 MW, according to details reported by Times of India – Guwahati. The expected output will therefore remain below the project’s original installed capacity.
The plant was severely damaged during the floods of 2024. The restoration plan is intended to revive the facility, upgrade Tripura’s ageing power infrastructure and expand the state’s renewable-energy capacity. The project’s damage also highlights the operational vulnerability of older electricity assets exposed to extreme weather and flooding, although officials have not provided further details on the specific repairs or resilience measures planned.
NHPC’s involvement places the project within a joint technical and implementation framework between the central hydropower corporation and the state government. The technical assessment is expected to guide the detailed restoration and modernisation requirements before construction work starts. The reported December 2026 timeline is therefore dependent on the completion of those assessments and other preparatory procedures.
Tripura is currently a power-surplus state, with gas-based thermal generation accounting for a major share of its electricity production. The Dumboor revival will add to the state’s renewable-energy assets, but the reported post-upgrade capacity of 10–11 MW means the project’s contribution will be limited in relation to the state’s overall power system. Its immediate importance lies in bringing a damaged public generation facility back into operation and improving the use of existing hydropower infrastructure.
The project also raises questions about how infrastructure damaged by floods is assessed, financed and rebuilt. In this case, the state has identified a restoration budget and an institutional partner, while the technical evaluation will determine the scope of work. The supplied announcement does not specify the condition of individual generating units, the project’s construction schedule after December 2026, or the proposed financing arrangement between Tripura and NHPC.
Officials are expected to complete the remaining assessments and preparatory formalities before work begins. The next reported milestone is the planned start of restoration and modernisation work by December 2026.
