| Assets | — | — |
| Non-current assets | — | — |
| Property, plant and equipment | 1,252,151.7a | 1,235,381.4a |
| Capital work-in-progress | 406,018.8a | 333,701.9a |
| Right-of-use assets | 80,879.5a | 75,858.9a |
| Goodwill | 59,585.3a | 57,453a |
| Other intangible assets | 116,524.1a | 119,450.5a |
| Intangible assets under development | 10,204.7a | 9,853.4a |
| Equity accounted investments | 29,708.6a | 29,471.5a |
| Financial assets | — | — |
| Investments | 27,806a | 25,791.9a |
| Loans | 1,146.6a | 731.4a |
| Derivative assets | 0.5a | 2,658.6a |
| Other financial assets | 16,623.4a | 16,083.2a |
| Retirement benefit assets | 126.7a | 232.6a |
| Non-current tax assets | 38,245.2a | 47,541.1a |
| Deferred tax assets | 39,362.2a | 41,110.8a |
| Other assets | 31,649.3a | 33,432.3a |
| Total non-current assets | 2,110,032.6a | 2,028,752.5a |
| Current assets | — | — |
| Inventories | 445,899.4a | 491,575.1a |
| Financial assets | — | — |
| Investments | 4,426.5a | 7,312.3a |
| Trade receivables | 52,600.6a | 62,635.3a |
| Cash and cash equivalents | 96,049.6a | 70,808.4a |
| Other balances with banks | 20,420.2a | 15,968.8a |
| Loans | 49.8a | 16a |
| Derivative assets | 3,705a | 2,013.3a |
| Other financial assets | 14,561.4a | 11,725.8a |
| Retirement benefit assets | 23.3a | 0a |
| Current tax assets | 795.2a | 796.8a |
| Other assets | 45,384.4a | 42,184.1a |
| Total current assets | 683,915.4a | 705,035.9a |
| Assets held for sale | 0a | 446.6a |
| Total assets | 2,793,948a | 2,734,235a |
| Equity and liabilities | — | — |
| Equity | — | — |
| Equity share capital | 12,474.4a | 12,474.4a |
| Other equity | 899,221.9a | 907,883.2a |
| Equity attributable to owners of the company | 911,696.3a | 920,357.6a |
| Non-controlling interests | 1,831.5a | 3,969.8a |
| Total equity | 913,527.8a | 924,327.4a |
| Non-current liabilities | — | — |
| Financial liabilities | — | — |
| Borrowings | 685,518.1a | 515,767.3a |
| Lease liabilities | 48,327.1a | 45,387a |
| Derivative liabilities | 2,063.8a | 1.1a |
| Other financial liabilities | 12,941.7a | 14,918.3a |
| Provisions | 58,065a | 54,240.3a |
| Retirement benefit obligations | 32,720.1a | 32,194.8a |
| Deferred income | 7,649.1a | 4,336.5a |
| Deferred tax liabilities | 144,301.5a | 129,923.4a |
| Other liabilities | 27,898.3a | 29,104.1a |
| Total non-current liabilities | 1,019,484.7a | 825,872.8a |
| Current liabilities | — | — |
| Financial liabilities | — | — |
| Borrowings | 204,120a | 299,971.9a |
| Lease liabilities | 10,045.3a | 9,695a |
| Trade payables | — | — |
| Total outstanding dues of micro and small enterprises | 15,107.1a | 12,037a |
| Total outstanding dues of creditors other than micro and small enterprises | 278,036.7a | 290,239.4a |
| Derivative liabilities | 3,911.8a | 2,143.8a |
| Other financial liabilities | 158,205.1a | 156,526.8a |
| Provisions | 38,882.9a | 37,790.8a |
| Retirement benefit obligations | 1,546.2a | 1,467.2a |
| Deferred income | 307.1a | 637.1a |
| Current tax liabilities | 17,755.2a | 21,668.5a |
| Other liabilities | 133,018.1a | 151,857.3a |
| Total current liabilities | 860,935.5a | 984,034.8a |
| Total liabilities | 1,880,420.2a | 1,809,907.6a |
| Total equity and liabilities | 2,793,948a | 2,734,235a |