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Taxes - Schedule of Statutory Rates to Effective Tax Rate (Details)	6 Months Ended			12 Months Ended
	Sep. 30, 2024 HKD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 HKD ($)	Mar. 31, 2024 HKD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 HKD ($)	Mar. 31, 2022 HKD ($)
Schedule of Statutory Rates to Effective Tax Rate [Abstract]
Income before tax				$ 12,753,794	$ 1,629,691	$ 7,473,926	$ 11,180,378
Hong Kong statutory income tax rate				16.50%	16.50%	16.50%	16.50%
Income tax expense computed at statutory rate				$ 2,104,376	$ 268,899	$ 1,233,198	$ 1,844,763
Reconciling items:
Non-deductible items in Hong Kong				272,376	34,804
Non-taxable items in Hong Kong				(608,034)	(77,695)	(46,142)	(94,775)
Under provision for prior year				1,051,282	134,334
Tax credit				(3,000)	(383)	(6,000)	(10,000)
Effective income tax expenses	$ 290,920	$ 37,445	$ 1,139,449	$ 2,817,000	$ 359,959	$ 1,181,056	$ 1,739,988

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount, before tax, of income (loss) attributable to parent. Includes, but is not limited to, income (loss) from continuing operations, discontinued operations and equity method investments.

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