v3.25.2
Cover - USD ($)
 12 Months Ended
Mar. 31, 2025
Aug. 08, 2025
Sep. 30, 2024
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Mar. 31, 2025    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2025    
Current Fiscal Year End Date --03-31    
Entity File Number 000-56182    
Entity Registrant Name LANDBAY INC    
Entity Central Index Key 0001672572    
Entity Tax Identification Number 81-1260549    
Entity Incorporation, State or Country Code NY    
Entity Address, Address Line One Room 3501    
Entity Address, Address Line Two EFC Building, Yuhang District    
Entity Address, City or Town Hangzhou City    
Entity Address, Country CN    
Entity Address, Postal Zip Code 311100    
City Area Code +86    
Local Phone Number 18621851468    
Title of 12(g) Security Class A Common Stock    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Elected Not To Use the Extended Transition Period false    
Entity Shell Company false    
Entity Public Float     $ 1,109,340
Entity Common Stock, Shares Outstanding   30,000,000  
Document Financial Statement Error Correction [Flag] false    
Auditor Firm ID 2485    
Auditor Opinion [Text Block] We have audited the accompanying consolidated balance sheets of Landbay Inc. and subsidiary (the “Company”) as of March 31, 2025 and 2024, the related consolidated statements of operations and Comprehensive loss, stockholders’ deficit, and cash flows for each of the two years in the period ended , and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company at March 31, 2025 and 2024, and the results of its operations and its cash flows for the years then ended, in conformity with accounting principles generally accepted in the United States of America.    
Auditor Name Simon & Edward, LLP    
Auditor Location Rowland Heights, CA