Underground hydro construction contract: NHPC tightens control over Kamala HEP execution structure
The latest underground hydro construction contract issued by NHPC for the Kamala Hydro Electric Project reflects a more operationally prescriptive procurement philosophy emerging in India’s Himalayan hydro sector. The Lot-2 package consolidates tunnels, caverns, powerhouse systems and access infrastructure into one integrated contract structure.
One of the strongest signals inside this underground hydro construction contract framework is the repeated extension of bid deadlines from February to May 2026. The staggered corrigenda cycle suggests sustained bidder pressure linked to geological uncertainty, logistics exposure and qualification interpretation.
The underground hydro construction contract also highlights NHPC’s decision to preserve domestic competitive bidding despite demands for international participation. The promoter retained the DCB route even for a technically intensive Himalayan tunnelling project involving complex underground interfaces.
Another major feature of this underground hydro construction contract architecture is the growing operational focus on access-road engineering, heavy-equipment deployment and inter-package logistics coordination. NHPC revised road specifications and contractor-equipment clauses after bidder scrutiny during the pre-bid phase.
EnergylineIndia.com observes that hydro EPC risk allocation and underground powerhouse excavation complexity are increasingly reshaping contractor behaviour across Himalayan hydro procurement.












