Indradhanush Gas Grid Limited has achieved 88.63% physical completion of the North-East Gas Grid project. This infrastructure, a joint venture between five major Indian public sector companies, is now delivering gas to the Numaligarh Refinery and has successfully connected Nagaland to the national grid.
Indradhanush Gas Grid Limited (IGGL) has crossed a significant milestone in India’s energy infrastructure, reaching 88.63% physical completion of the North-East Gas Grid project as of March 2026. This project is a major collaborative effort between five of India’s leading public sector energy companies: Indian Oil Corporation (IOCL), Oil and Natural Gas Corporation (ONGC), GAIL, Oil India Limited (OIL), and Numaligarh Refinery Limited (NRL), with each holding an equal 20% stake.
The company has successfully transitioned from a pure project-execution phase to becoming an active commercial transmission operator. A major operational breakthrough occurred in November 2025 with the start of commercial gas supplies to the Numaligarh Refinery. Furthermore, the recent introduction of natural gas into the Dergaon–Dimapur pipeline has officially connected Nagaland to the national gas network for the first time, marking a significant step in the regional energy plan.
As of fiscal 2026, the company has invested Rs 632 crore, bringing the total capital spending on the grid to Rs 6,878 crore. This investment is part of a government-backed initiative to reduce the region's dependence on expensive liquid fuels and foster local industrial development. The project is supported by viability gap funding, which assists in covering a portion of the total estimated costs to ensure financial feasibility.
Regulatory progress has also been steady, with the Petroleum and Natural Gas Regulatory Board recently authorizing the 175-kilometer Duliajan Feeder Line. This pipeline is designed to transport gas from Oil India sources into the national network, which helps the company integrate local gas reserves more effectively. The company's recent management updates indicate a shift toward prioritizing operational efficiency as the network moves into its final phases.
While the progress is substantial, the project operates in a complex environment. Building gas infrastructure across the Northeast involves unique operational challenges, including difficult mountainous terrain, complex land acquisition processes, and the logistical difficulty of transporting materials to remote areas. Investors monitoring the parent companies—IOCL, ONGC, GAIL, and OIL—may watch these updates closely, as the completion of this grid is important for the long-term energy strategy and potential gas demand in the Northeast. The next key monitorable will be the progress on the final stretches of the pipeline and the scaling up of gas offtake from regional industrial units.