| 1 | Contract labour in Indian railways with special reference to contract labour in Northern Zone |
| Researcher: | Varma, Hari Chand |
| University: | Dr Bhimrao Ambedkar University |
| Language: | English |
| 2 | |
| Researcher: | Varma, Hari Om |
| Guide: | Chaudhuri, M DPandit, V N |
| University: | University of Delhi |
| Language: | English |