Power Grid Corporation of India Limited Ratings Reaffirmed
Rating Action
& The borrowing programme pertains to fiscal 2020. Utilized to raise bonds under Series LXIII, LXIV, LXV and LXVI ^ The borrowing programme pertains to fiscal 2024. Utilized to raise bonds under Series LXXIII, LXXIV, LXXV and LXXVI $ The borrowing programme pertains to fiscal 2025. Utilized to raise bonds under Series LXXVII,LXXVIII, LXXIX and LXXX # The borrowing programme pertains to fiscal 2021. Utilized to raise bonds under Series LXVII and LXVIII @ The borrowing programme pertains to fiscal 2023. Utilized to raise bonds under Series LXX, LXXI and LXXII ! The borrowing programme pertains to fiscal 2022. Utilized to raise bonds under Series LXIX ~ The borrowing programme pertains to fiscal 2019. Utilized to raise bonds under Series LXII and GOI Fully Serviced Bond. < The borrowing programme pertains to fiscal 2017. Utilized to raise bonds under Series LIII, LIV, LV, LVI, LVII and LVIII. > The borrowing programme pertains to fiscal 2018. Utilized to raise bonds under Series LIX, LX and LXI. ^^ Short-term debt and commercial paper borrowing will cumulatively not exceed Rs 12,000 crore at any point Note: None of the Directors on Crisil Ratings Limited’s Board are members of rating committee and thus do not participate in discussion or assignment of any ratings. The Board of Directors also does not discuss any ratings at its meetings. 1 crore = 10 million Refer to annexure for Details of Instruments & Bank Facilities |
Detailed Rationale Crisil Ratings has reaffirmed its 'Crisil AAA/Stable/Crisil A1+’ ratings on the debt programmes and bank facilities of Power Grid Corporation of India Ltd (PGCIL). The ratings on yet to be issued bonds of Rs 16,000 Cr has been withdrawn based on the request of company. Ratings on bonds worth Rs 85.3 Cr has been withdrawn on partial redemption, the withdrawals are in line with Crisil Ratings policy on withdrawal of ratings.
The rating is driven by the company’s strong operating metrics, as seen in line availability continuing to exceed the normative level of 98% and high collection efficiency. Revenue growth should remain steady over the medium term, supported by healthy capitalisation. These strengths are partially offset by the weak credit risk profiles of customers. |
Analytical Approach Crisil Ratings has combined the business and financial risk profiles of PGCIL and its subsidiaries owing to significant operational, financial linkages
Please refer Annexure - List of Entities Consolidated, which captures the list of entities considered and their analytical treatment of consolidation. |
Key Rating Drivers - Strengths Favourable regulatory framework, ensuring secured and stable cash flow The regulatory framework is structured by the Central Electricity Regulatory Commission (CERC), which helps to generate stable revenue and cash flow. Tariff recovery is linked to transmission network availability maintained by the company and is not impacted by the actual power transmitted through the network that could be extraneous to its control. Also, the tariff structure ensures recovery of all expenses, including debt-servicing charges, and provides for a fixed return on equity (RoE), if the company adheres to operational benchmarks. The tariff structure also ensures recovery of annual obligation for debt contracted to finance capital expenditure (capex) in transmission projects and funded in a debt-to-equity mix of 70:30.
A large part of the asset base is on the regulated RoE structure, resulting in secured and stable cash flow, mitigating any immediate pressure on profitability from increased participation of private sector players through the competitive bidding route.
Strong operating efficiency, resulting in full recovery of cost Strong operating efficiency has helped surpass operational benchmarks set by CERC—system availability was over 99% in fiscal 2025, against the benchmark of 98%. As per the regulator’s stipulation, this ensured recovery of the entire cost, including debt-servicing charges, and provided for RoE. The regulated tariff structure and superior operating efficiency lend stability to cash flow. As the company owns and manages most of the interregional transmission network, its customer profile is diversified, reducing counterparty concentration risk.
Healthy financial flexibility supported by strong cash accrual Cash accrual of over Rs 20,000 crore per fiscal provides significant flexibility to raise funds despite a leveraged capital structure. Capex has increased to ~Rs 24,000 crore in fiscal 2025 compared to ~Rs 10,000 crore in previous two fiscals. The capex is likely to further increase to Rs ~ Rs 28,000-35,000 crore over the next two fiscals given strong orderbook which has significantly increased to Rs 155,000 crore at 31 March 2025 from ~Rs 80,000 crore at 31 March 2024. The increase in orderbook is on account of projects won through TBCB route along with new projects acquired on nomination basis.
To fund this increased capex requirement, reliance on debt is likely to increase in medium term. PGCIL contracts long-term debt for a tenure of 10 years and more. Debt servicing begins only after new projects become operational and start generating revenue, hence overall debt protection metrics are expected to remain comfortable in the medium term despite increase in the overall debt
Crisil Ratings takes comfort from healthy cash accruals benefiting from existing operational portfolio to fund project costs partly along with ongoing repayment and dividend payments. A large part of cash flow is backed by a regulated tariff structure which ensures recovery of all expenses, including repayment of loans. Further for the projects won through the TBCB route, revenue is secured through 35-year transmission service agreements for TBCB projects, and collections are managed by Central Transmission Utility of India Ltd (CTUIL).
Strategic importance to the government The company plays a vital role in the development of India’s power sector. It owns about 85% of the interstate transmission network and carries around 45% of total power generated in the country. Moreover, its strong project-implementation capability helps ensure that projects of strategic importance, with compressed implementation timelines, or involving difficult terrain or other complexities, will continue to be awarded to the company on nomination basis. In the past, the government has extended equity support for capex and has also guaranteed loans availed from multilateral lending agencies. |
Key Rating Drivers - Weaknesses Weak credit risk profiles of customers State power utilities (SPUs), which account for the entire revenue of PGCIL , are the weak link in the value chain from a credit risk profile perspective. The risk is mitigated by a strong collection track record of over 98% in last two fiscals. Furthermore, adequate letters of credit have been opened in favour of the company by SPUs as per the settlement scheme. As the owner of a large interregional transmission network, the company has a diversified customer profile. Furthermore, as per CERC’s regulations, CTUIL had to carry out billing, collection, and disbursement for all interstate transmission system (ISTS) licensees, based on the point of connection (PoC) methodology of allocation of transmission charges. As the sole collection agency of all ISTS networks in India, the CTU has greater negotiation power with designated ISTS customers. It also has authority to regulate power to defaulting customers as per CERC’s norms, which it could use in exceptional circumstances. While CTUIL is currently wholly owned by PGCIL, it is expected to eventually have an independent shareholding under the GoI. The collection efficiency under the PoC mechanism should remain strong going forward. |
Liquidity Superior Healthy cash accrual of over Rs 20,000 crore per fiscal should be sufficient to cover debt obligation. Liquidity is also supported by cash balance of Rs 9,637 crore as on September 30, 2025. Furthermore, the regulated tariff structure for the assets won through nomination ensures recovery of the amount of debt repaid as approved by CERC every year. |
ESG Profile The ESG profile of PGCIL supports its already strong credit risk profile.
The power transmission sector has a moderate impact on the environment owing to risks linked to operations such as energy loss during transmission. Also, due to the nature of operations, the sector affects the local community moderately and has occupational health hazards associated with it. In line with this, PGCIL is focused on mitigating its environmental and social risks to ensure minimal impact.
Key ESG highlights
There is growing importance of ESG among investors and lenders. The commitment of PGCIL to ESG principles will play a key role in enhancing stakeholder confidence, given the high share of market borrowing in its overall debt and access to both domestic and foreign capital markets. |
Outlook Stable PGCIL should maintain a robust financial risk profile over the medium term, despite the planned debt-funded capex, backed by strong operating efficiency and the regulated tariff regime. The company should also continue to benefit from its strategic importance to India’s power sector, given its role in developing and operating the national power transmission network. |
Rating sensitivity factors Downward factors
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About the Company PGCIL was incorporated in 1989 to set up extra-high voltage alternating current and high-voltage direct current (HVDC) transmission lines. The company moves large blocks of power from the central generating agencies and areas that have surplus power to load centres within and across regions. It is under the administrative control of the Ministry of Power, GoI. The company owns and operates an extensive nationwide network of transmission lines, which mainly comprise 400-kilovolt transmission lines and HVDC transmission systems, carrying more than 45% of the total power generated in India. As on September 30, 2025, it owned and operated a transmission line network of 1,81,054 circuit kilometer and 287 substations, with a transformer capacity of over 5,82,516 megavolt ampere.
For the first six months of fiscal 2026, on a consolidated basis, net profit was Rs 7,197 crore on operating income of Rs 23,115 crore, against Rs 7,517 crore and Rs 23,126 crore, respectively, for the corresponding period in the previous fiscal. |
Key Financial Indicators
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Any other information: Not applicable |
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Annexure - Details of Instrument(s)
#Yet to be issued ***Short term debt and commercial paper borrowing will cumulatively not exceed Rs 12,000 crore at any point *fund based and non fund based limits are interchangeable Annexure - Details of Rating Withdrawn
*Partial redemption #Yet to be issued |
Annexure - List of Entities Consolidated
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