| 1 | Cytotaxonomical and cytogenetical studies of fern flora of Bhutan |
| Researcher: | Ambastha, Usha |
| Guide: | Sinha, B M B |
| University: | Patna University |
| Language: | English |
| 2 | Biosystematic and cytogenetic stuies in Indian species of the genus pteris |
| Researcher: | Jha, Jaykar |
| Guide: | Sinha, B M B |
| University: | Patna University |
| Language: | English |