| 1 | ||
| Researcher: | M, Santha | |
| Guide: | Abraham, Mathew | |
| University: | Mahatma Gandhi University, Kottayam | |
| Language: | Hindi | |
| Shodhganga | ||
| 2 | ||
| Researcher: | Santha, E R | |
| Guide: | Shajahan, S | |
| University: | Cochin University of Science and Technology | |
| Language: | Hindi | |
| 3 | Tamil tatha Sourashtra ke sant Kavi Sriman Natanagopala Nayaki Swamigal: ek vivechanatmak adhyayan | |
| Researcher: | Santha Sankari, N S G | |
| Guide: | Vizialakshmi, V | |
| University: | Pondicherry University, Puducherry | |
| Language: | Hindi | |