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Property, Plant and Equipment, Net (Details)
¥ in Millions
12 Months Ended
Mar. 31, 2024
CNY (¥)
Mar. 31, 2024
USD ($)
Mar. 31, 2023
CNY (¥)
Mar. 31, 2023
USD ($)
Mar. 31, 2022
CNY (¥)
Property, Plant and Equipment, Net [Abstract]          
Depreciation expense | ¥ ¥ 5.7   ¥ 4.6   ¥ 3.3
Impairment for property, plant and equipment (in Dollars) | $