v3.25.4
Cover
 9 Months Ended
Sep. 30, 2025
Entity Addresses [Line Items]  
Document Type S-1
Amendment Flag false
Entity Registrant Name STARDUST POWER INC.
Entity Central Index Key 0001831979
Entity Tax Identification Number 99-3863616
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 15 E. Putnam Ave
Entity Address, Address Line Two Suite 378
Entity Address, City or Town Greenwich
Entity Address, State or Province CT
Entity Address, Postal Zip Code 06830
City Area Code (800)
Local Phone Number 742 3095
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false
Business Contact [Member]  
Entity Addresses [Line Items]  
Entity Address, Address Line One Stardust Power Inc.
Entity Address, Address Line Two 15 E. Putnam Ave
Entity Address, Address Line Three Suite 378
Entity Address, City or Town Greenwich
Entity Address, State or Province CT
Entity Address, Postal Zip Code 06830
City Area Code (800)
Local Phone Number 742 3095
Contact Personnel Name Roshan Pujari