XML 143 R128.htm IDEA: XBRL DOCUMENT v3.20.1
Foreign Currency Translation Reserve - Summary of Movement in Foreign Currency Translation Reserve Attributable to Equity Holders (Detail)
₨ in Millions, $ in Millions
 12 Months Ended
Mar. 31, 2020
INR (₨)
Mar. 31, 2020
USD ($)
Mar. 31, 2019
INR (₨)
Mar. 31, 2018
INR (₨)
Disclosure of foreign currency translation reserves [line items]        
Balance at the beginning of the year ₨ 570,753   ₨ 485,346 ₨ 522,695
Translation difference related to foreign operations, net 8,447 $ 112 3,238 3,576
Change in effective portion of hedges of net investment in foreign operations     (287) (49)
Total comprehensive income for the year 102,326 1,356 91,196 76,975
Balance at the end of the year 559,333 7,420 570,753 485,346
Hosted data center services business [member]        
Disclosure of foreign currency translation reserves [line items]        
Reclassification of foreign currency translation differences to profit and loss on sale of business     4,131  
Workday business [member]        
Disclosure of foreign currency translation reserves [line items]        
Reclassification of foreign currency translation differences to profit and loss on sale of business     79  
Foreign currency translation reserve [member]        
Disclosure of foreign currency translation reserves [line items]        
Balance at the beginning of the year 15,250   16,618 13,107
Translation difference related to foreign operations, net 8,289   3,129  
Change in effective portion of hedges of net investment in foreign operations     (287)  
Total comprehensive income for the year 8,289   (1,368) 3,511
Balance at the end of the year ₨ 23,539 $ 312 15,250 ₨ 16,618
Foreign currency translation reserve [member] | Hosted data center services business [member]        
Disclosure of foreign currency translation reserves [line items]        
Reclassification of foreign currency translation differences to profit and loss on sale of business     (4,131)  
Foreign currency translation reserve [member] | Workday business [member]        
Disclosure of foreign currency translation reserves [line items]        
Reclassification of foreign currency translation differences to profit and loss on sale of business     ₨ (79)