| 1 | Ecology of algae in the river Manjira (A P) with special reference to its lithophytic flora | |
| Researcher: | Raj Kumar, B | |
| Guide: | Venkateswarlu, V | |
| University: | Osmania University | |
| Language: | English | |
| 2 | ||
| Researcher: | Ramamoorthy, Raj Kumar | |
| Guide: | Bhatnagar, A K and Sundararaman and Montagna | |
| University: | University of Hyderabad | |
| Language: | English | |
| Shodhganga | ||
| 3 | ||
| Researcher: | Kattula ,Raj Kumar | |
| Guide: | Rao ,N. Sudhakar Rao , P. Venkata | |
| University: | University of Hyderabad, Hyderabad | |
| Language: | English | |
| Shodhganga | ||
| 4 | Studies in pulsed techniques applied to power system relay instrumentation and control | |
| Researcher: | Raj Kumar, A D | |
| Guide: | Guruda Char, B N | |
| University: | Osmania University | |
| Language: | English | |