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Cover - shares
 9 Months Ended
Dec. 31, 2021
Feb. 10, 2022
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Dec. 31, 2021  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2022  
Current Fiscal Year End Date --03-31  
Entity File Number 000-49671  
Entity Registrant Name MODULAR MEDICAL, INC.  
Entity Central Index Key 0001074871  
Entity Tax Identification Number 87-0620495  
Entity Incorporation, State or Country Code NV  
Entity Address, Address Line One 16772 W. Bernardo Drive  
Entity Address, City or Town San Diego  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 92127  
City Area Code (858)  
Local Phone Number 800-3500  
Title of 12(b) Security Common Stock  
Trading Symbol MODD  
Security Exchange Name NASDAQ  
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 Common Stock, Shares Outstanding   6,390,372