INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH REVIEW (IJMDRR) (www.ijmdrr.com) Bangalore-560083, INDIA. Print ISSN: 2395-1877 Online ISSN: 2395-1885 Impact Factor: 7.352 CERTIFICATE OF PUBLICATION This is to Certify that Mr./Mrs./Ms./Dr. Gunjan Tiwari, K.S. Thakur has published research paper in " International Journal of Multidisciplinary Research Review (IJMDRR) peer reviewed and refereed journal, Volume- 1, Issue- 5, May 2016, pp. 136-141." Paper Title:- " ROLE OF TRADE UNIONS: A CASE STUDY IN INDIAN RAILWAYS (WITH SPECIAL REFERENCE TO NORTHERN CENTRAL RAILWAYS). " Chief Editor Managing Editor