| Assets | — | — |
| Non-current assets | — | — |
| Property, plant and equipment | 2,709.36a | 2,584.24a |
| Capital work-in-progress | 1,007.76a | 875.93a |
| Intangible assets | 5.01a | 5.1a |
| Intangible assets under development | 0.83a | 0.72a |
| Investments accounted for using the equity method | 190.24a | 151.31a |
| Financial assets | — | — |
| Investments | 6.3a | 7.04a |
| Loans | 8.23a | 5.7a |
| Trade receivables | 0.3a | 12.88a |
| Other financial assets | 6.78a | 7.11a |
| Deferred tax assets (net) | 9.44a | 11.7a |
| Other non-current assets | 179.56a | 160.16a |
| Total non-current assets | 4,123.82a | 3,821.87a |
| Current assets | — | — |
| Inventories | 187.22a | 180.19a |
| Financial assets | — | — |
| Investments | 0.5a | 0.5a |
| Trade receivables | 347.2a | 333.5a |
| Cash and cash equivalents | 14.27a | 8.63a |
| Bank balances other than cash and cash equivalents | 100.31a | 59.84a |
| Loans | 2.98a | 2.71a |
| Other financial assets | 186.99a | 132.13a |
| Current tax assets (net) | 0.8a | 0.47a |
| Other current assets | 88.66a | 112.39a |
| Total current assets | 928.92a | 830.36a |
| Assets held for sale | 1.6a | 1.18a |
| Regulatory deferral account debit balances | 187.31a | 148.56a |
| Total assets | 5,241.65a | 4,801.97a |
| Equity | — | — |
| Equity share capital | 96.97a | 96.97a |
| Other equity | 1,743.74a | 1,510.13a |
| Total equity attributable to owners of the company | 1,840.71a | 1,607.09a |
| Non-controlling interests | 70.52a | 44.13a |
| Total equity | 1,911.23a | 1,651.22a |
| Liabilities | — | — |
| Non-current liabilities | — | — |
| Financial liabilities | — | — |
| Borrowings | 2,010.54a | 1,902.15a |
| Lease liabilities | 21.82a | 18.38a |
| Other financial liabilities | 8.02a | 5.4a |
| Provisions | 21.39a | 20.84a |
| Deferred tax liabilities (net) | 189.99a | 152.32a |
| Other non-current liabilities | 33.64a | 28.1a |
| Total non-current liabilities | 2,285.39a | 2,127.19a |
| Current liabilities | — | — |
| Financial liabilities | — | — |
| Borrowings | 465.21a | 448.25a |
| Lease liabilities | 3.39a | 2.53a |
| Trade payables | — | — |
| Total outstanding dues of micro and small enterprises | 7.99a | 5.8a |
| Total outstanding dues of creditors other than micro and small enterprises | 103.61a | 107.58a |
| Other financial liabilities | 331.77a | 329.45a |
| Other current liabilities | 21.2a | 19.8a |
| Provisions | 77.17a | 70.6a |
| Current tax liabilities (net) | 0.39a | 0.03a |
| Total current liabilities | 1,010.73a | 984.04a |
| Deferred revenue | 25.66a | 26.51a |
| Regulatory deferral account credit balances | 8.63a | 13a |
| Equity and liabilities | — | — |
| Total equity and liabilities | 5,241.65a | 4,801.97a |