Karnataka Neeravari Nigam Limited wants a contractor to grout, pour and point the upstream face of Bhadra Dam under DRIP-II, a Rs 25.71 crore job whose bids now close on 21 September 2026.
What the Bhadra Dam rehabilitation tender covers
This is rehabilitation work on an existing dam, done under the second phase of the Dam Rehabilitation and Improvement Project (DRIP-II). The main item is underwater: cementitious grout, deeper cavity filling and underwater pointing on the balance portion of the upstream face, from level 2066 ft down to 2000 ft. Alongside that, the contractor reams the porous holes and foundation drainage holes, carries out stability and resetting work on saddle 1 and saddle 2, and builds CC roads and drains at the dam.
The deadline has already moved once. The first close date was 5 September. A corrigendum issued that day pushed it to 21 September at 17:00, because replies to the pre-bid queries were still waiting for approval from the competent authority. Read those replies before you price, since they may change how the underwater quantities are measured.
Who should bid
A general civil contractor will find most of the value in one specialist item. Firms that have done underwater grouting or dam face treatment before, or that can bring in a diving and grouting partner, are the natural bidders. The CC road and drain portion suits a small local contractor working as a sub-contractor to the main bidder. The contract is item rate, in two covers, with a 90-day bid validity.
Paperwork worth reading first
The document set carries the drawings, a contract management module, a DRIP approval letter, an insurance surety bond format and a circular on new royalty rates. The royalty circular matters for anyone pricing aggregate and sand, and the surety bond format is worth checking against how you usually furnish security.
Machines and plant for dam grouting work
Underwater grouting runs on a grout plant: a colloidal mixer, grout pumps with long delivery lines and an air compressor. Reaming drainage holes needs a drilling rig that can work from the gallery or the crest. For work on the upstream face you will need a crane or a pontoon to hold divers and equipment in place. The road and drain portion is ordinary work for a backhoe loader, a concrete mixer with vibrators and a small roller.
Key facts
Tender ID
2026_Karnatak_318811_1
Reference no.
KNNL/2026-27/DA/WORK_INDENT4533
Issuing authority
Karnataka Neeravari Nigam Limited, Government of Karnataka
Location
Bhadra Dam, Karnataka
Estimated value
Rs 25.71 Cr
EMD
Rs 25,70,000
Tender fee
Rs 7,500
Form of contract
Item rate
Published
7 August 2026
Bids close
21 September 2026, 17:00 (extended by corrigendum)
Bid opening
Technical 22 September 2026; financial 28 September 2026
Underwater cementitious grouting, cavity filling and pointing on the upstream face of Bhadra Dam from 2066 ft to 2000 ft, reaming of drainage holes, saddle stability work, and CC roads and drains, under DRIP-II.
When do bids close?
Bids close on 21 September 2026 at 17:00. The date was moved from 5 September by a corrigendum. Technical bids open on 22 September and financial bids on 28 September.
What are the EMD and tender fee?
The EMD is Rs 25,70,000, about 1% of the Rs 25.71 crore estimate, and the tender fee is Rs 7,500.
Can a small contractor take part?
The main item needs underwater grouting experience, so a small firm is better placed as a partner or sub-contractor for the road and drain portion. Check the NIT for the exact eligibility rules.
Tender details are summarised for convenience and may change. Always verify the latest dates, terms and documents on the official tendering portal before bidding. DesiMachines is not responsible for changes made by the issuing authority.
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