Financial assets (Tables)

12 Months Ended

Mar. 31, 2022

Disclosure of financial assets [abstract]

Summary of Financial Assets

	As at March 31,
	2021		2022		2022
	(INR)		(INR)		(USD)
Non current
Financial assets at amortised cost
Loans
Security deposits		140		164		2
Total		140		164		2
Others
Deferred consideration receivable (refer Note 39)		—		1,936		26
Bank deposits with remaining maturity for more than twelve months (refer Note 15)		2,999		1,318		17
Total		2,999		3,254		43

	As at March 31,
	2021		2022		2022
	(INR)		(INR)		(USD)
Current
Financial assets at amortised cost
Loans
Loans to related parties (refer Note 45)		11		—		—
Loans and advances to third party		—		556		7
Security deposits		45		67		1
Total		56		623		8

	As at March 31,
	2021		2022		2022
	(INR)		(INR)		(USD)
Others
Deferred consideration receivable (refer Note 39)		1,936		610		8
Advances recoverable		154		153		2
Government grant receivable						—
- viability gap funding		302		0		0
- generation based incentive receivable		859		783		10
Interest accrued on fixed deposits		394		444		6
Interest accrued on loan to third party		—		40		1
Others		52		148		2
Total		3,697		2,178		29