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v3.19.2

Income Taxes - Movement in Deferred Tax Assets and Liabilities (Detail) - INR (₨) ₨ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2017
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Beginning balance | ₨ 3,849 | ₨ (3,516) | ₨ (822)
Credit/(charge) in the consolidated statement of income | (1,592) | 3,944 | 1,288
Credit/(charge) in the Other comprehensive income | (616) | 1,573 | (1,218)
On account of business combination |  | (113) | (2,764)
Assets held for sale |  | 1,961 |
Other (if any) | 546 |  |
Ending balance | 2,187 | 3,849 | (3,516)
Carry forward losses [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Beginning balance | 5,694 | 5,513 | 5,250
Credit/(charge) in the consolidated statement of income | (2,879) | 133 | 825
Credit/(charge) in the Other comprehensive income | 334 | 48 | (562)
Ending balance | 3,149 | 5,694 | 5,513
Trade payables, accrued expenses and other liabilities [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Beginning balance | 3,107 | 3,151 | 3,270
Credit/(charge) in the consolidated statement of income | 295 | 243 | (44)
Credit/(charge) in the Other comprehensive income | (22) | (246) | (75)
Assets held for sale |  | (41) |
Other (if any) | 333 |  |
Ending balance | 3,713 | 3,107 | 3,151
Allowances for lifetime expected credit loss [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Beginning balance | 4,499 | 2,955 | 3,039
Credit/(charge) in the consolidated statement of income | 9 | 1,564 | (77)
Credit/(charge) in the Other comprehensive income | 2 | 2 | (7)
Assets held for sale |  | (22) |
Other (if any) | 11 |  |
Ending balance | 4,521 | 4,499 | 2,955
Minimum alternate tax [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Beginning balance | 74 | 1,520 | 1,457
Credit/(charge) in the consolidated statement of income | (74) | (1,446) | 63
Ending balance |  | 74 | 1,520
Property, plant and equipment [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Beginning balance | (2,166) | (4,153) | (4,262)
Credit/(charge) in the consolidated statement of income | 219 | 912 | (249)
Credit/(charge) in the Other comprehensive income | (94) | (75) | 358
Assets held for sale |  | 1,150 |
Other (if any) | 201 |  |
Ending balance | (1,840) | (2,166) | (4,153)
Amortizable goodwill [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Beginning balance | (1,810) | (4,057) | (3,963)
Credit/(charge) in the consolidated statement of income | 16 | 1,522 | (401)
Credit/(charge) in the Other comprehensive income | (105) | (53) | 307
Assets held for sale |  | 778 |
Ending balance | (1,899) | (1,810) | (4,057)
Intangible assets [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Beginning balance | (3,190) | (4,511) | (4,665)
Credit/(charge) in the consolidated statement of income | 1,076 | 1,546 | 2,639
Credit/(charge) in the Other comprehensive income | (181) | (112) | 279
On account of business combination |  | (113) | (2,764)
Ending balance | (2,295) | (3,190) | (4,511)
Interest on bonds and fair value movement of investments [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Beginning balance | (1,712) | (2,245) | (814)
Credit/(charge) in the consolidated statement of income | 186 | (112) | (837)
Credit/(charge) in the Other comprehensive income | 71 | 645 | (594)
Ending balance | (1,455) | (1,712) | (2,245)
Cash flow hedges [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Beginning balance | 29 | (1,419) | (458)
Credit/(charge) in the Other comprehensive income | (633) | 1,448 | (961)
Ending balance | (604) | 29 | (1,419)
Contract liabilities [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Beginning balance | (273) | (183) | (4)
Credit/(charge) in the consolidated statement of income | (1) | (35) | (192)
Credit/(charge) in the Other comprehensive income | (15) | (9) | 13
Assets held for sale |  | (46) |
Ending balance | (289) | (273) | (183)
Others [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Beginning balance | (403) | (87) | 328
Credit/(charge) in the consolidated statement of income | (439) | (383) | (439)
Credit/(charge) in the Other comprehensive income | 27 | (75) | 24
Assets held for sale |  | 142 |
Other (if any) | 1 |  |
Ending balance | ₨ (814) | ₨ (403) | ₨ (87)

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