Finance costs and fair value change in derivative instruments

12 Months Ended

Mar. 31, 2022

Disclosure Of Detailed Information About Finance Cost And Fair Value Change in Derivative Instruments [Abstract]

Finance costs and fair value change in derivative instruments

37.Finance costs and fair value change in derivative instruments

	For the year ended March 31,
	2020		2021		2022		2022
	(INR)		(INR)		(INR)		(USD)
Interest expense#		32,913		34,988		35,667		470
Bank charges		411		428		625		8
Option premium amortisation		1,119		1,773		2,327		31
Loss on fair value changes on derivative instruments*		—		—		1,629		21
Unwinding of discount on provisions		524		745		778		10
Unamortised ancillary borrowing cost written off		520		347		686		9
Total		35,487		38,281		41,712		550

# Includes interest on loan from related parties, compulsorily convertible preference shares and lease liabilities of INR Nil (March 31, 2021: INR 19, March 31, 2020: INR 15), INR 925 (March 31, 2021: INR 3,361, March 31, 2020: INR 2,230) and INR 166 (March 31, 2021: INR 113, March 31, 2020: INR 105), respectively.

* Represents cumulative losses that were reported in equity transferred statement of profit or loss in respect of forecasted transaction that are no longer expected to occur.