| 1 | |
| Researcher: | Roy, Indrajit |
| Guide: | Maitra, A N |
| University: | University of Delhi |
| Language: | English |
| 2 | Road network planning in West Bengal: an econometric approach |
| Researcher: | Roy, Indrajit |
| Guide: | Halder, D K |
| University: | Jadavpur University |
| Language: | English |
| 3 | |
| Researcher: | Roy, Indrajit Ghosh |
| Guide: | Bhattacharya, B B |
| University: | Indian School of Mines |
| Language: | English |