| Cover | Jan. 20, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jan. 20, 2023 |
| Current Fiscal Year End Date | --09-30 |
| Entity File Number | 333-191083 |
| Entity Registrant Name | RASNA THERAPEUTICS, INC. |
| Entity Central Index Key | 0001582249 |
| Entity Tax Identification Number | 39-2080103 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 420 Lexington Avenue |
| Entity Address, Address Line Two | Suite 2525 |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10170 |
| City Area Code | 646 |
| Local Phone Number | 396-4087 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
