| 21 | ||
| Researcher: | Harikrishnan R | |
| Guide: | Indira M | |
| University: | University of Kerala | |
| Language: | English | |
| Shodhganga | ||
| 22 | ||
| Researcher: | Harikrishnan, PS | |
| Guide: | Perumal, S | |
| University: | Madurai Kamraj University | |
| Language: | English | |
| Shodhganga | ||
| 23 | ||
| Researcher: | Harikrishnan, H | |
| Guide: | Shanmugaiah, V | |
| University: | Madurai Kamraj University | |
| Language: | English | |
| Shodhganga | ||
| 24 | ||
| Researcher: | T.Harikrishnan | |
| Guide: | A.Rafi | |
| University: | University of Madras | |
| Language: | English | |
| Shodhganga | ||
| 25 | In vitro studies in plumbago rosea L and Saraea asoca (Roxb) Dewilde | |
| Researcher: | Harikrishnan, K N | |
| Guide: | Thomas, Aliyamma | |
| University: | University of Calicut | |
| Language: | English | |
| 26 | ||
| Researcher: | Harikrishnan K, Uma | |
| Guide: | Menon, S K | |
| University: | Gujarat University | |
| Language: | English | |
| Shodhganga | ||
| 27 | Some aspects of accretive and other operators in abstract spaces | |
| Researcher: | Harikrishnan, P K | |
| Guide: | Raveendran, K T | |
| University: | Kannur University | |
| Language: | English | |
| Shodhganga | ||
| 28 | ||
| Researcher: | Harikrishnan M R | |
| Guide: | Suresh Singh G | |
| University: | University of Kerala | |
| Language: | English | |
| Shodhganga | ||
| 29 | ||
| Researcher: | Mr. Harikrishna.N | |
| Guide: | Prof.C. Venkata Rao | |
| University: | Sri Venkateswara University | |
| Language: | English | |
| Shodhganga | ||
| 30 | New World Philosophy of narnia : recognition and resolution of crisis | |
| Researcher: | Harikrishnan, M.P. | |
| Guide: | Kumar, K.P. Nanda | |
| University: | University of Calicut, Malappuram | |
| Language: | English | |