NHAI (National Highways Authority of India) Tenders

The National Highways Authority of India (NHAI) is the primary agency responsible for the development and maintenance of India's national highway network. NHAI tenders represent the largest single source of highway construction procurement in India, covering thousands of kilometres of road construction annually under the Bharatmala programme and other national highway development projects.

What are NHAI (National Highways Authority of India) Tenders in government procurement?

NHAI operates under the Ministry of Road Transport and Highways (MoRTH) and manages approximately 44,000 km of national highways. Its annual capital expenditure for construction and upgradation exceeds Rs 1.5 lakh crore in recent years, making it one of the top three infrastructure spenders in the country.

NHAI tenders are issued through its own e-procurement portal and published on CPPP. Three primary contract models are used. EPC (Engineering, Procurement, Construction) contracts are government-funded, where NHAI pays for the full construction cost through milestone-based payments. HAM (Hybrid Annuity Model) contracts require the private developer to finance 60% of construction cost, recovered through semi-annual annuity payments over 15 years. BOT-Toll contracts transfer the full construction cost and toll revenue risk to the private concessionaire.

EPC contracts dominate current NHAI procurement because HAM and BOT require private financing, and banking sector appetite for long-term highway lending has been selective. Typical EPC package sizes are Rs 1,000-4,000 crore per package covering 50-100 km of 4-lane or 6-lane highway.

NHAI tenders are issued as Design-Build contracts under EPC, the contractor takes responsibility for detailed design within the employer's requirements. For HAM and BOT, the concessionaire is responsible for all design and execution. All technical specifications must comply with MoRTH's Specifications for Road and Bridge Works (5th/6th Revision) and IRC codes.

Eligibility for NHAI tenders is among the most demanding in Indian infrastructure: annual turnover typically Rs 500-2,000 crore (depending on package size), specific experience of similar-scale highway projects in the last 5-10 years, net worth requirements, and financial capacity to mobilise equipment and manpower for the contract period.

Why it matters for bidders

NHAI is the most prestigious and commercially significant highway client in India. A strong track record with NHAI enables companies to bid for state and international highway projects. NHAI's payment record, while not perfect, is generally better than many state PWDs, and the Arbitration and Conciliation Act mechanisms for dispute resolution are more established in NHAI contracts.

The Bharatmala Phase-I and subsequent phases have created a large pipeline of NHAI tenders that will continue for the next 10-15 years. Companies with the requisite scale can build sustainable revenue streams from NHAI contracts.

The NHAI ecosystem is large: a single EPC contract generates significant subcontracting, civil earthwork, bridge construction, pavement, electrical (streetlighting, intelligent traffic management), and roadside amenities. Regional civil contractors, pavement specialists, and service companies find subcontracting on NHAI projects more accessible than winning prime contracts.

Example

NHAI floats an EPC tender for a 78-km stretch of NH-48 in Karnataka, including 4-laning, 3 major bridges, 1 ROB, 2 underpasses, and a service road. The estimated cost is Rs 1,850 crore. Eligibility requires Rs 600 crore turnover and experience of at least one project of similar scale. Six large contractors bid. The L1 contractor is awarded at Rs 1,620 crore (12.4% below estimated cost). NHAI's Independent Engineer (IE) is engaged separately to monitor construction and certify payment milestones. The contractor must achieve 5 defined construction milestones for 20% payment each. The IE's Interim Payment Certificate triggers NHAI's accounts department to release payment within 30 days.

Key rules / thresholds

NHAI EPC contracts follow the MoRTH Model EPC Contract, which includes specific conditions for arbitration, extensions of time, price adjustments, and liquidated damages. LD is typically 0.05% of accepted contract value per day of delay, capped at 5% of contract value. An Additional Performance Security (APS) of the difference between the accepted and estimated contract value is required if the bid is more than 15% below estimated cost.