| 1 | |
| Researcher: | Venkata Ratnam, G S |
| Guide: | Varma, Y B G |
| University: | Indian Institute of Technology-Madras |
| Language: | English |
| 2 | Contributions to the biology of the fresh water fishes (family:Bagridae) |
| Researcher: | Seetha Ratnam, K N |
| Guide: | Rajendra Nath, T |
| University: | Kakatiya University |
| Language: | English |
| 3 | Contribution to the biology of the freshwater fishes Family: Bagridae |
| Researcher: | Seetha Ratnam, K N |
| Guide: | Rajendra Nath, T |
| University: | Kakatiya University |
| Language: | English |
| 4 | |
| Researcher: | Ratnam, Kamatham Samuel John |
| Guide: | Krishna Murthy, V |
| University: | Andhra University |
| Language: | English |