NH-10 Slope Protection Tender: Eight Landslide Sites Above Siliguri (Rs 148.67 Cr)

NHIDCL is spending ₹148.67 crore to stabilise eight landslide prone spots on the road to Sikkim, and the NH-10 slope protection tender closes at 3:00 PM on 26 October 2026.

Eight sites, named chainage by chainage

The scope is slope protection and landslide mitigation at eight vulnerable locations: km 3.750 to 3.900, km 8.200 to 8.370, km 11.000 to 11.875, km 33.960 to 34.230, km 39.850 to 40.030, km 45.850 to 45.955, km 49.180 to 49.320 and km 49.850 onward. The notice, reference NHID/WB/NH10/SP/8spots/25, comes from the NHIDCL corporate office in New Delhi on EPC mode.

NH-10 is the only all weather road between the plains at Siliguri and Gangtok. When a slope on it goes, Sikkim is cut off, which is why eight separate sites are being treated under one contract rather than patched one at a time.

A very long maintenance tail

The portal lists ₹1,48,67,00,000 as the value and ₹1,48,67,000 as the EMD, exactly 1 per cent, with no exemption. The fee is ₹23,600. The number worth noticing is the work period: 4,320 days, close to twelve years. That is construction followed by a long defect and maintenance obligation, so the bidder is signing up to keep these slopes standing, not just to build them.

North Bengal has other work live for the same bidders, including the Kharibari Ghoshpukur tender on NH-327C, the Bagdogra Galgalia four laning tender and, further up the same hill road, the Coronation Bridge Manpong tender on NH-17.

Slope work is drilling, anchoring and drainage

This is not an earthmoving job in the usual sense. The money goes into rock bolts, anchored mesh, soil nails, catch structures and getting water off the slope before it gets into it. Plan for drilling rigs on platforms cut by a long reach excavator, shotcrete and grout fed by mixers, and a crane to place barriers and precast units from the carriageway. A small backhoe loader handles the drains and the debris clearance that comes with every wet spell. Everything has to work inside a half carriageway with traffic held by flagmen, often on a slope that is still moving.

Key facts

How to apply

1. Open the official portal: Central Public Procurement Portal.
2. Search by tender ID 2026_NHIDC_919855_1 (reference no. NHID/WB/NH10/SP/8spots/25) under National Highways and Infrastructure Development Corporation.
3. Register on the portal and keep a valid Class III digital signature certificate ready.
4. Download the RFP, read the maintenance obligation attached to the 4,320 day period, then check eligibility, the ₹1,48,67,000 EMD and the ₹23,600 fee.
5. Submit your bid online before 26 October 2026, 3:00 PM.

Machines for this kind of work: Road Construction: machines, models and comparisons

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