| 21 | ||
| Researcher: | Azad, Jai Kumar | |
| Guide: | Dogra, Balram Singh | |
| University: | Himachal Pradesh University | |
| Language: | English | |
| Shodhganga | ||
| 22 | Administrative structure in ancient India as depicted in inscriptions from c 300 B C to 650 A D | |
| Researcher: | Jain, Jai Kumar | |
| Guide: | Dahiya, Neelima | |
| University: | Maharshi Dayanand University | |
| Language: | English | |
| Shodhganga | ||
| 23 | ||
| Researcher: | Rai, Jai Kumar | |
| Guide: | Singh, Satyendra | |
| University: | V. B. S. Purvanchal University | |
| Shodhganga | ||
| 24 | ||
| Researcher: | Jai Kumar, R A | |
| Guide: | Kannan, R | |
| University: | Manonmaniam Sundaranar University | |
| Language: | English | |
| Shodhganga | ||