| Property, plant and equipment | 54,682.73a | 52,723.01a |
| Capital work-in-progress | 9,768.61a | 6,963.86a |
| Investment property | 2.89a | 2.89a |
| Goodwill | 2,959.85a | 2,954.72a |
| Other intangible assets | 707.89a | 816.46a |
| Intangible assets under development | 143.82a | 47.75a |
| Right-of-use assets | 4,740.45a | 5,112.02a |
| Investment in associates and joint ventures | 639.27a | 586.52a |
| Investments | 7,595.73a | 14,601.13a |
| Loans | 60.26a | 56.78a |
| Trade receivables | 97.91a | 113.25a |
| Derivative instruments | 827.4a | 822.17a |
| Other financial assets | 671.67a | 570.14a |
| Deferred tax assets (net) | 1,651.64a | 1,495.3a |
| Income tax assets (net) | 419.81a | 802.48a |
| Other assets | 8,366.13a | 6,153.21a |
| Non-current assets | 93,336.06a | 93,821.69a |
| Inventories | 32,160.82a | 31,262.54a |
| Investments | 10,254.78a | 10,500.56a |
| Trade receivables | 31,671.51a | 30,874.57a |
| Cash and cash equivalent | 13,153.1a | 5,087.13a |
| Other bank balances | 3,746.12a | 5,308.06a |
| Loans | 201.33a | 127.02a |
| Derivative instruments | 1,148.23a | 1,325.53a |
| Other financial assets | 416.21a | 734.07a |
| Other assets | 7,403.02a | 4,800.7a |
| Current assets | 100,155.12a | 90,020.18a |
| Total assets | 193,491.18a | 183,841.87a |
| Equity | — | — |
| Equity share capital | 931.27a | 931.27a |
| Other equity | 70,770.57a | 66,123.99a |
| Equity attributable to equity holders of the parent | 71,701.84a | 67,055.26a |
| Non-controlling interests | -48.75a | 360.72a |
| Total equity | 71,653.09a | 67,415.98a |
| Borrowings | 18,589.8a | 17,512.72a |
| Lease liabilities | 3,792.56a | 4,161.77a |
| Derivative instruments | 7.79a | 146.08a |
| Other financial liabilities | 253.09a | 391.09a |
| Provisions | 1,806.84a | 1,411.73a |
| Deferred tax liabilities (net) | 1,690.49a | 2,153.27a |
| Other liabilities | 2,896.43a | 7,880.66a |
| Non-current liabilities | 29,037a | 33,657.32a |
| Borrowings | 56,630.95a | 51,010.61a |
| Lease liabilities | 461.99a | 447.27a |
| Trade payables | — | — |
| Dues to micro enterprises and small enterprises | 530.22a | 493.46a |
| Dues to other than micro enterprises and small enterprises | 22,091a | 21,019.94a |
| Derivative instruments | 9.32a | 46.38a |
| Other financial liabilities | 1,814.41a | 1,799.44a |
| Other liabilities | 9,154.05a | 6,563.98a |
| Provisions | 1,500.11a | 901.32a |
| Current tax liabilities (net) | 609.04a | 486.17a |
| Current liabilities | 92,801.09a | 82,768.57a |
| Total liabilities | 121,838.09a | 116,425.89a |
| Total equity and liabilities | 193,491.18a | 183,841.87a |