v3.26.1
Financial Instruments - Summary Of Contingent Consideration (Detail) - INR (₨)
₨ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Contingent Consideration [Abstract]    
Balance at the beginning of the year ₨ (1,864) ₨ (429)
(Addition)/Reversals [1]   169
(Addition)/Reversals [1] (49)  
Addition through Business combination (Refer to Note 7) 0 (1,537)
Payouts 648 0
Finance expense recognized in consolidated statement of income (195) (47)
Translation adjustment (174) (20)
Balance at the end of the year ₨ (1,634) ₨ (1,864)
[1] Towards change in fair value of earn-out liability as a result of changes in estimates of revenue and earnings over the earn-out period.