Income taxes (Tables)

12 Months Ended

Mar. 31, 2023

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

Reconciliations of the differences between the income tax expenses of the Company and the PRC statutory EIT rate applicable to losses of the consolidated entities are as follows:

	Year ended March 31, 2021			Year ended March 31, 2022			Year ended March 31, 2023
	RMB			RMB			RMB
Loss before income taxes		(193,391	)		(134,812	)		(106,805	)
Income tax computed at respective applicable tax rates		(48,348	)		(33,702	)		(26,701	)
Effect of different tax jurisdiction		14,272			2,341			12,323
Super deduction for research and development expenses (a)		(2,632	)		(1,881	)		(456	)
Non-deductible expenses		140			97			728
Change in valuation allowance		37,439			34,716			15,017
Total		871			1,571			911

(a) According to the relevant laws and regulations promulgated by the State Administration of Tax of the PRC, from 2018 onwards, enterprises engaging in research and development activities are entitled to claim 175% of their qualified research and development expenses so incurred as tax deductible expenses. The additional deduction of 75% of qualified research and development expenses (the “Super Deduction”) can be directly claimed in the annual EIT filing. For the years end March 31, 2021, 2022 and 2023, the Super Deduction for research and development expenses available to the Company amounted to RMB2.6 million, RMB1.9 million and RMB0.5 million, respectively.

Reconciliations between the effective income tax rate and the PRC statutory income tax rates are as follows:

	Year ended March 31, 2021			Year ended March 31, 2022			Year ended March 31, 2023
	RMB			RMB			RMB
PRC statutory income tax rates		25	%		25	%		25	%
Tax holiday effect		1	%		3	%		(1	%)
Difference in tax rates of subsidiaries outside PRC		(8	%)		(8	%)		(10	%)
Super deduction for research and development expenses		1	%		1	%		0	%
Non-deductible expenses		0	%		0	%		1	%
Change in valuation allowance		(19	%)		(20	%)		(14	%)
Effective income tax rate		0	%		1	%		1	%

Summary of Income Tax Holiday

The provisions for income taxes for the years ended March 31, 2021, 2022 and 2023 differ from the amounts computed by applying the EIT primarily due to change in valuation allowance provided and tax differential from certain subsidiaries with preferential tax rates of the Company.

The following table sets forth the effect of tax holiday effect on China operations:

	Year ended March 31, 2021		Year ended March 31, 2022		Year ended March 31, 2023
	RMB		RMB		RMB
Tax holiday effect		1,074		3,513		1,235
Basic and diluted net loss per share effect		0.02		0.05		0.02

Schedule of Components of Income Tax Expense (Benefit)

The current and deferred portions of income tax expenses included in the consolidated statements of loss and comprehensive loss are as follows:

	Year ended March 31, 2021			Year ended March 31, 2022			Year ended March 31, 2023
	RMB			RMB			RMB
Current income tax expense/(benefit)		1,018			(582	)		78
Deferred tax benefit		(1,889	)		(989	)		(989	)
Income tax credit, net		(871	)		(1,571	)		(911	)

Schedule of Deferred Tax Assets And Tax Liabilities

Deferred taxes were measured using the enacted tax rates for the periods in which they are expected to be reversed. The tax effects of temporary differences that give rise to the deferred tax asset and liabilities balances as of March 31, 2022 and 2023 are as follows:

	As of March 31, 2022			As of March 31, 2023
	RMB			RMB
Deferred tax assets:
Net accumulated loss-carry forward		172,059			163,526
Deferred deductible advertising expense		2,483			—
Allowance		78			238
Contract liabilities		419			172
Accruals		2,208			842
Fair Value Change		—			1,891
Less: Valuation allowance		(177,247	)		(166,669	)
Net deferred tax assets		—			—
Deferred tax liabilities:
Recognition of intangible assets arising from asset acquisition and business combination		(5,130	)		(4,141	)
Unrealized fair value change of the available-for-sale debt investments		283			—
Net deferred tax liabilities		(4,847	)		(4,141	)

Summary of Valuation Allowance

Movement of valuation allowance is as follows:

	Year Ended March 31, 2021		Year Ended March 31, 2022		Year Ended March 31, 2023
	RMB		RMB		RMB
Beginning balance		112,539		149,978		177,247
Change of valuation allowance		37,439		27,269		15,017
Written-off for expiration of net operating losses		—		—		(22,995	)
Decrease of valuation allowances related to the disposal of a subsidiary		—		—		(2,600	)
Ending balance		149,978		177,247		166,669