Disclaimer: Education only. Figures are the official ones for the dates shown. Where a figure comes from a news report of an official statement, the source says so. This page describes policy history and takes no political view.
In simple words (if you are in class 10)
When India became independent, it had very few good long-distance roads. In 1951 the national highways added up to about 19,811 km. Today they are about 1,46,560 km, more than seven times longer, and many are four lanes or wider.
That growth came in waves. First the government built roads with its own money. Then it created NHAI to run a big programme. Next it invited private companies to build roads and collect tolls. Later it found ways to sell the right to collect tolls on finished roads to long-term investors, and used that money to build new roads. InvITs are one of the tools that make this possible.
The professional view
1. Timeline at a glance
1943
The first road plan
The Nagpur Road Plan sets India's first 20-year target for road length and road classes. Independent India inherits this framework.
1951
Where independent India started
On 31 March 1951 India had about 3.99 lakh km of roads, of which only 19,811 km were national highways. MoSPI
1956
National Highways Act
Parliament gives the Centre the power to declare national highways. Land acquisition for highways still works under sections 3A to 3J of this Act. India Code
1988
NHAI Act
A dedicated authority is created to develop and run national highways. NHAI becomes operational in 1995. NHAI
1998
National Highways Development Project
NHDP begins, the first large programme to widen highways to four lanes and above, in seven phases.
2001 to 2012
Golden Quadrilateral
5,846 km linking Delhi, Mumbai, Chennai and Kolkata are four-laned. The government declared the network complete in January 2012. The North–South and East–West corridors (7,142 km) follow.
2007 to 2008
The BOT era
NHDP Phase III (12,109 km) is approved on a build-operate-transfer basis in April 2007. The National Highways Fee Rules, 2008 set how tolls are fixed and revised every year. MoRTH
2014
InvITs become possible
SEBI notifies the InvIT Regulations in September 2014, creating listed trusts that can own operating roads. The national highway network is 91,287 km. SEBI
2016
HAM and TOT
The Hybrid Annuity Model (January 2016) shares funding 40:60 and removes traffic risk from the builder. In August 2016 the Cabinet approves Toll-Operate-Transfer to lease operating roads for an upfront payment.
2017
First InvIT listing and Bharatmala
IRB InvIT Fund becomes the first InvIT to raise money from the public (IPO closed 5 May 2017). Bharatmala Pariyojana Phase I (34,800 km) is approved in October 2017.
2018
First TOT bundle
The first TOT bundle is awarded in March 2018 for ₹9,681 crore against a base price of ₹6,258 crore, for a 30-year concession.
2020-21
Record construction year
13,327 km of national highways are built in one year, about 37 km a day. Lok Sabha
2021
FASTag, NMP and Gati Shakti
FASTag becomes mandatory from midnight of 15 February 2021. The National Monetisation Pipeline (23 August 2021) lists about ₹6 lakh crore of assets, with roads (26,700 km) the largest share. The PM Gati Shakti master plan follows in October 2021. NITI Aayog
2024 to 2025
Satellite tolling and the annual pass
Rules for GNSS-based tolling are notified in September 2024. The FASTag annual pass starts on 15 August 2025.
Today
1.46 lakh km and counting
The network is about 1,46,560 km (December 2025), roughly 7.4 times its 1951 length, with barrier-free (MLFF) tolling on trial in 2026.
2. The network in numbers
For about 40 years after independence the national highway network grew slowly. It was about 23,800 km in both 1961 and 1971, and 33,650 km by 1991. Growth sped up after 2000 as NHDP widened corridors and many state roads were declared national highways. The network roughly doubled between 2011 (70,934 km) and 2022 (1,40,995 km).
Length is only part of the story. Most of the change since 1998 is in lanes and quality: two-lane roads widened to four or six lanes, bypasses, and new access-controlled expressways.
3. How fast India builds
Construction pace went from about 12 km a day in 2014-15 to a record 37 km a day in 2020-21, according to the Ministry's reply in the Lok Sabha. It has since stayed at about 28 to 34 km a day. In 2024-25 it was 10,660 km, about 29 km a day.
4. Four eras of highway finance
| Era | How roads were paid for | What it means for investors and accountants |
|---|---|---|
| 1947 to 1997 | Government budget, built by public works departments | No private capital. Few toll roads. |
| 1998 to 2012 | NHDP through NHAI, a cess on fuel, then BOT (Toll) and BOT (Annuity) concessions | Private SPVs, project finance, concession accounting, traffic risk with the developer |
| 2013 to 2016 | Fewer BOT bids after delays in land and clearances, more EPC contracts, and HAM from January 2016 | Builders take construction risk only. Annuities from the authority replace traffic risk. |
| 2016 to now | Asset monetisation: TOT, InvITs and securitisation of toll receipts | Operating roads move to long-term owners such as InvITs. NDCF, valuation and service concession accounting under Ind AS 115 become central. |
These eras overlap, and all of these models are still in use. Chapter 2.3 explains how each one works.
5. What changed for tolling
- 2008: the National Highways Fee Rules set how toll rates are fixed and revised every year with inflation.
- 15 February 2021: FASTag became mandatory, and cash payments in FASTag lanes started being charged double.
- September 2024: rules for satellite (GNSS) tolling were notified, with the first 20 km free each day for private vehicles that use it.
- 15 August 2025: the annual pass started, now ₹3,075 from 1 April 2026.
- 2026: barrier-free (multi-lane free flow) tolling on trial on the Surat–Bharuch section of NH-48.
The fee rules chapter has the details and sources.
6. Why this history matters to an InvIT analyst
- Old concessions keep old rules. A road awarded in 2008 follows its own concession agreement, which may differ from today's model agreement. Always read the actual agreement.
- Model shapes risk. A BOT toll road carries traffic risk. A HAM road carries the authority's payment risk. A TOT road carries traffic risk on a road that already has a traffic history.
- Policy steps show up in revenue. FASTag, the annual pass and GNSS tolling all change how revenue is collected and reported, so look at the dates when you compare years.
7. Common questions
How long were India's national highways at independence?
On 31 March 1951 the national highways measured 19,811 km, out of about 3.99 lakh km of roads of all kinds (MoSPI).
When was NHAI set up?
Parliament passed the National Highways Authority of India Act in 1988. NHAI became operational in 1995.
What was the Golden Quadrilateral?
It was Phase I of NHDP: 5,846 km of four-lane highway linking Delhi, Mumbai, Chennai and Kolkata. The government declared it complete in January 2012.
Which year saw the most highway construction?
2020-21, with 13,327 km built, about 37 km a day (Lok Sabha reply, 7 December 2023).
When did InvITs start in India?
SEBI notified the InvIT Regulations in September 2014. The first InvIT IPO, IRB InvIT Fund, closed on 5 May 2017.
Sources
- MoSPI, Statistical Year Book, Road chapter (1951 and 2011 road length).
- PIB, Infrastructure: roads, July 2022 (NH length by decade; 4,260 km built in 2013-14).
- Lok Sabha, Unstarred Question 897, 7 December 2023 (yearly construction 2014-15 to 2022-23).
- NBM&CW, 12,349 km built in 2023-24; Indian Infrastructure, 29 km a day in 2024-25.
- Indian Infrastructure, Cabinet approves the TOT model (2016); Cyril Amarchand Mangaldas, first TOT bundle.
- Indian Infrastructure, IRB InvIT Fund IPO, May 2017.
- India Infra Hub, National Monetisation Pipeline explained.
- Business Today, FASTag mandatory from 15 February 2021.
Education only. This page is not investment, tax, legal or accounting advice, and it does not recommend buying, selling or holding any security. Laws and rules change: check the linked primary source and consult a qualified professional before acting.
Last reviewed 25 October 2026. Spotted an error? Tell us and we will correct it.