| 1 | Studies on Costus speciosus (Koen) SM and C malortieanus H Wendl |
| Researcher: | Nagendra Prasad, P |
| Guide: | Mahadevan, A |
| University: | University of Madras |
| Language: | English |
| 2 | |
| Researcher: | Devi Prasad, P V |
| Guide: | Chowdhury, Y B K |
| University: | Banaras Hindu University |
| Language: | English |