| Assets | — | — |
| Non-current assets | — | — |
| Property, plant and equipment | 109,046.3a | 84,800.6a |
| Capital work-in-progress | 200,334.1a | 156,738.7a |
| Intangible assets | 17.3a | 94.3a |
| Investments accounted for using equity method | 351.3a | 340.9a |
| Financial assets | — | — |
| Investments | 17.5a | 17.5a |
| Loans | 847.4a | 936.4a |
| Other financial assets | 3,224.4a | 2,549a |
| Deferred tax assets (net) | 4,180.3a | 4,763.3a |
| Other non-current assets | 17,088.9a | 16,568.7a |
| Total non-current assets | 335,107.5a | 266,809.4a |
| Current assets | — | — |
| Inventories | 818.1a | 728a |
| Financial assets | — | — |
| Trade receivables | 1,670.9a | 2,768.4a |
| Cash and cash equivalents | 3,447.6a | 3,316.5a |
| Bank balance other than cash and cash equivalents | 34,050.5a | 33,997.9a |
| Loans | 243.5a | 237.1a |
| Other financial assets | 7,159.8a | 5,757.5a |
| Other current assets | 1,570.4a | 1,371.5a |
| Total current assets | 48,960.8a | 48,176.9a |
| Assets held-for-sale | 0.7a | 162.5a |
| Regulatory deferral account debit balance | 7,843.5a | 7,961.2a |
| Total assets | 391,912.5a | 323,110a |
| Equity and liabilities | — | — |
| Equity | — | — |
| Equity share capital | 39,298a | 39,298a |
| Other equity | 101,410.5a | 99,297.4a |
| Total equity | 140,708.5a | 138,595.4a |
| Liabilities | — | — |
| Non-current liabilities | — | — |
| Financial liabilities | — | — |
| Borrowings | 196,895.4a | 132,479.4a |
| Lease liabilities | 552.9a | 487a |
| Other financial liabilities | 1,850a | 0.1a |
| Provisions | 1,797.6a | 1,790.2a |
| Other non-current liabilities | 9,078.6a | 7,068.3a |
| Total non-current liabilities | 210,174.5a | 141,825a |
| Current liabilities | — | — |
| Financial liabilities | — | — |
| Borrowings | 5,621.1a | 7,450.1a |
| Lease liabilities | 162.6a | 176.9a |
| Trade payables | — | — |
| Total outstanding dues of micro and small enterprises | 65.8a | 66.8a |
| Total outstanding dues of creditors other than micro and small enterprises | 1,132.5a | 400.8a |
| Other financial liabilities | 27,501.3a | 27,935.3a |
| Other current liabilities | 570.1a | 686.6a |
| Provisions | 5,976.1a | 5,973.1a |
| Total current liabilities | 41,029.5a | 42,689.6a |
| Total equity and liabilities | 391,912.5a | 323,110a |