| Cover | Nov. 24, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 24, 2021 |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
