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Consolidated Statement of Changes in Equity
₨ in Millions, $ in Millions
INR (₨)
USD ($)
Adjustment On Adoption Of IFRS Sixteen [member]
INR (₨)
Share capital, fully paid-up [member]
INR (₨)
shares
Share capital, fully paid-up [member]
USD ($)
shares
Securities premium reserve [member]
INR (₨)
Securities premium reserve [member]
USD ($)
Retained earnings [member]
INR (₨)
Retained earnings [member]
USD ($)
Retained earnings [member]
Adjustment On Adoption Of IFRS Sixteen [member]
INR (₨)
Share based payment reserve [member]
INR (₨)
Share based payment reserve [member]
USD ($)
Foreign currency translation reserve [member]
INR (₨)
Foreign currency translation reserve [member]
USD ($)
Cash flow hedging reserves [member]
INR (₨)
Cash flow hedging reserves [member]
USD ($)
Other reserves [member]
INR (₨)
Other reserves [member]
USD ($)
Equity attributable to the equity holders of the Company [member]
INR (₨)
Equity attributable to the equity holders of the Company [member]
USD ($)
Equity attributable to the equity holders of the Company [member]
Adjustment On Adoption Of IFRS Sixteen [member]
INR (₨)
Non- controlling interest [member]
INR (₨)
Non- controlling interest [member]
USD ($)
Balance at the beginning of the year at Mar. 31, 2017 ₨ 522,695     ₨ 4,861   ₨ 469   ₨ 490,930     ₨ 3,555   ₨ 13,107   ₨ 5,906   ₨ 1,476   ₨ 520,304     ₨ 2,391  
Beginning balance, shares at Mar. 31, 2017 | shares [1]       2,430,900,565 2,430,900,565                                    
Total comprehensive income for the year                                              
Profit for the year 80,084             80,081                     80,081     3  
Other comprehensive income (3,109)                       3,511   (6,020)   (616)   (3,125)     16  
Total comprehensive income for the year 76,975             80,081         3,511   (6,020)   (616)   76,956     19  
Contributions by and distributions to owners of the Company                                              
Issue of equity shares on exercise of options 24     ₨ 8   1,987         (1,971)               24        
Issue of equity shares on exercise of options, shares | shares [1]       3,559,599 3,559,599                                    
Issue of shares by controlled trust on exercise of options               1,182     (1,182)                        
Cash dividend paid (including dividend tax thereon) (5,420)             (5,420)                     (5,420)        
Buyback of equity shares [2] (110,000)     ₨ (687)   (1,656)   (108,344)                 687   (110,000)        
Buyback of equity shares, shares | shares [1],[2]       (343,750,000) (343,750,000)                                    
Transaction cost related to buyback (312)             (312)                     (312)        
Bonus issue of equity shares       ₨ 4,866       (4,866)                              
Bonus issue of equity shares, shares | shares [1]       2,433,074,327 2,433,074,327                                    
Compensation cost related to employee share-based payment 1,384             14     1,370               1,384        
Total transactions with owners of the Company (114,324)     ₨ 4,187   331   (117,746)     (1,783)           687   (114,324)        
Total transactions with owners of the Company, shares | shares [1]       2,092,883,926 2,092,883,926                                    
Balance at the end of the year at Mar. 31, 2018 485,346     ₨ 9,048   800   453,265     1,772   16,618   (114)   1,547   482,936     2,410  
Ending balance, shares at Mar. 31, 2018 | shares [1]       4,523,784,491 4,523,784,491                                    
Statement [LineItems]                                              
Adjustment on adoption of IFRS | Increase (decrease) due to application of IFRS 15 [member] (2,279)             (2,279)                     (2,279)        
Adjusted balance 483,067     ₨ 9,048   800   450,986     1,772   16,618   (114)   1,547   480,657     2,410  
Adjusted balance, shares | shares [1]       4,523,784,491 4,523,784,491                                    
Total comprehensive income for the year                                              
Profit for the year 90,173             90,031                     90,031     142  
Other comprehensive income 1,023                       (1,368)   2,529   (247)   914     109  
Total comprehensive income for the year 91,196             90,031         (1,368)   2,529   (247)   90,945     251  
Contributions by and distributions to owners of the Company                                              
Issue of equity shares on exercise of options 4     ₨ 4   528         (528)               4        
Issue of equity shares on exercise of options, shares | shares [1]       1,681,717 1,681,717                                    
Issue of shares by controlled trust on exercise of options               565     (565)                        
Cash dividend paid (including dividend tax thereon) [2] (5,434)             (5,434)                     (5,434)        
Bonus issue of equity shares [2]       ₨ 3,016   (795)   (1,454)                 (767)            
Bonus issue of equity shares, shares | shares [1],[2]       1,508,469,180 1,508,469,180                                    
Loss of control in subsidiary (52)                                         (52)  
Infusion of capital 28                                         28  
Compensation cost related to employee share-based payment 1,944             6     1,938               1,944        
Total transactions with owners of the Company (3,510)     ₨ 3,020   (267)   (6,317)     845           (767)   (3,486)     (24)  
Total transactions with owners of the Company, shares | shares [1]       1,510,150,897 1,510,150,897                                    
Balance at the end of the year at Mar. 31, 2019 570,753     ₨ 12,068   533   534,700     2,617   15,250   2,415   533   568,116     2,637  
Ending balance, shares at Mar. 31, 2019 | shares [1]       6,033,935,388 6,033,935,388                                    
Statement [LineItems]                                              
Adjustment on adoption of IFRS [3]     ₨ (872)             ₨ (872)                     ₨ (872)    
Adjusted balance 569,881     ₨ 12,068   533   533,828     2,617   15,250   2,415   533   567,244     2,637  
Adjusted balance, shares | shares [1]       6,033,935,388 6,033,935,388                                    
Total comprehensive income for the year                                              
Profit for the year 97,713 $ 1,295           97,218                     97,218     495  
Other comprehensive income 4,613 61                     8,289   (4,730)   896   4,455     158  
Total comprehensive income for the year 102,326 1,356           97,218         8,289   (4,730)   896   101,673     653  
Contributions by and distributions to owners of the Company                                              
Issue of equity shares on exercise of options 5     ₨ 5   742         (742)               5        
Issue of equity shares on exercise of options, shares | shares [1]       2,498,925 2,498,925                                    
Issue of shares by controlled trust on exercise of options               1,026     (1,026)                        
Cash dividend paid (including dividend tax thereon) [2] (6,863)             (6,863)                     (6,863)        
Buyback of equity shares [2] (105,000)     ₨ (646)       (105,000)                 646   (105,000)        
Buyback of equity shares, shares | shares [1],[2]       (323,076,923) (323,076,923)                                    
Transaction cost related to buyback (311)             (311)                     (311)        
Compensation cost related to employee share-based payment 1,271             9     1,262               1,271        
Effect of modification of ADS RSUs from equity settled to cash settled [4] (561)                   (561)               (561)        
Cash dividend paid to Non-controlling interest (1,415)                                         (1,415)  
Total transactions with owners of the Company (112,874)     ₨ (641)   742   (111,139)     (1,067)           646   (111,459)     (1,415)  
Total transactions with owners of the Company, shares | shares [1]       (320,577,998) (320,577,998)                                    
Balance at the end of the year at Mar. 31, 2020 ₨ 559,333 $ 7,420   ₨ 11,427 $ 152 ₨ 1,275 $ 17 ₨ 519,907 $ 6,896   ₨ 1,550 $ 21 ₨ 23,539 $ 312 ₨ (2,315) $ (31) ₨ 2,075 $ 28 ₨ 557,458 $ 7,395   ₨ 1,875 $ 25
Ending balance, shares at Mar. 31, 2020 | shares [1]       5,713,357,390 5,713,357,390                                    
[1] Includes 23,097,216, 27,353,853 and 22,746,081 treasury shares held as at March 31, 2018, 2019 and 2020, respectively by a controlled trust. 4,351,775, 2,599,183 and 4,607,772 shares have been transferred by the controlled trust to eligible employees on exercise of options during the year ended March 31, 2018, 2019 and 2020, respectively.
[2] Refer to Note 22
[3] Refer to Note 3
[4] Refer to Note 30