| 1 | Gurmukhi lipi mein uplabhdh hindi kavya ka alochnatmak adhyayan: 17veen aur 18veen shatabdi | |
| Researcher: | Harbhajan Singh | |
| Guide: | Nagendra | |
| University: | University of Delhi | |
| Language: | English | |
| 2 | Chemical study of some components of lac larvae, lac resin and lac hosts | |
| Researcher: | Harbhajan Singh | |
| Guide: | Seshadri, T R | |
| University: | University of Delhi | |
| Language: | English | |
| 3 | Studies on ortho-dihydroxycoumarins and their analytical applicaitons | |
| Researcher: | Harbhajan Singh | |
| Guide: | Jain, B D | |
| University: | University of Delhi | |
| Language: | English | |
| 4 | ||
| Researcher: | Singha, Harbhajan Singh | |
| Guide: | Singh, Nainder | |
| University: | Jawaharlal Nehru University | |
| Language: | English | |
| Shodhganga | ||