| 1 | |
| Researcher: | Mishra, Ratna |
| Guide: | Mishra, Durga Shankar |
| University: | Rashtrasant Tukadoji Maharaj Nagpur University |
| Language: | English |
| 2 | Synthetic and photochemical studies via 1,4 quinones and indol 2,3 diones |
| Researcher: | Ratna, DE |
| Guide: | Mukherjee, Tulsi |
| University: | University of Rajasthan |
| Language: | English |
| 3 | Protozooplankton in relation to pollution in Visakhapatnam harbour, East coast of India |
| Researcher: | Ratna Brarati, V |
| University: | Andhra University |
| Language: | English |
| 4 | Studies on Ascochyta Cypericola, a Fungal Pathogen of Cyperus Rotundus |
| Researcher: | Ratna Kumar, P K |
| University: | Andhra University |
| Language: | English |
| 5 | Irrigation and water supply in Andhradesa. C.1000 A.D. - C. 1600 A.D |
| Researcher: | Mercy Ratna Rani, Domathoty |
| University: | Andhra University |
| Language: | English |