| 1 | |
| Researcher: | Harcharan Singh |
| Guide: | Desai, R W |
| University: | University Of Delhi |
| Language: | English |
| 2 | |
| Researcher: | Kang, Harcharan Singh |
| University: | Indian Institute of Technology-Delhi |
| Language: | English |
| 3 | |
| Researcher: | Sobti, Harcharan Singh |
| Guide: | Tiwari, Mahesh |
| University: | University Of Delhi |
| Language: | English |