| 1 | |
| Researcher: | Mohandas, K K |
| Guide: | Shah, G L |
| University: | Sardar Patel University |
| Language: | English |
| 2 | Biosystematic studies in varieties and species of Piper occuring in Karnataka region |
| Researcher: | Abdul Rahiman, B |
| Guide: | Nair, M K |
| University: | University of Mysore |
| Language: | English |
| 3 | |
| Researcher: | Ayachi, Akhlesh Kumar |
| Guide: | Tiwari, D P |
| University: | Rani Durgavati Vishwavidyalaya |
| Language: | English |
| 4 | Studies on some aspects of betelvine, Piper betel L cultivars of Midnapore District in West Bengal |
| Researcher: | Das, Asok Kumar |
| University: | University of Calcutta |
| Language: | English |