| 1 | |
| Researcher: | Harikrishnan, S |
| University: | Banaras Hindu University |
| Language: | English |
| 2 | |
| Researcher: | Harikrishnan, T J |
| Guide: | Chellappa, D Jeyaseelan |
| University: | Tamil Nadu Veterinary and Animal Sciences University |
| Language: | English |
| 3 | |
| Researcher: | Harikrishnan, M |
| Guide: | Dandapani, C |
| University: | Annamalai University |
| 4 | In vitro studies in plumbago rosea L and Saraea asoca (Roxb) Dewilde |
| Researcher: | Harikrishnan, K N |
| Guide: | Thomas, Aliyamma |
| University: | University of Calicut |
| Language: | English |