Borrowings, Other Debts and Derivative Liabilities - Schedule of Short-Term Borrowings (Details) ¥ in Thousands, $ in Thousands	Sep. 30, 2024 CNY (¥)	Sep. 30, 2024 USD ($)	Mar. 31, 2024 CNY (¥)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 CNY (¥)
Schedule of Short-Term Borrowings [Abstract]
Bank borrowings	¥ 13,138	$ 1,872	¥ 15,213	$ 2,107	¥ 86,261

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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