| 1 | Descriptive grammar of the Thullal Pattus by Kunchan Nambiar |
| Researcher: | Vijayakrishnan, N |
| Guide: | Pillai, P Ramchandran |
| University: | University of Kerala |
| Language: | English |
| 2 | |
| Researcher: | Vijayakrishnan, N P |
| Guide: | Lalkar, P B |
| University: | University of Calicut |
| Language: | Malayalam |