Central Workshop - Northern Coalfields Limited"TO MAXIMISE AVAILABILITY OF HEMM WORKING IN DIFFERENT PROJECTS OF NCL BY PROVIDING TIMELY MAINTENANCE/REPAIR SUPPORT WITH DUE REGARDS TO SAFETY, ENVIRONMENT, QUALITY AND COST". Overview: The Project Report for Central Workshop, Jayant was sanctioned in February, 1982.central workshop in jayant project ncl,Jayant Project - Northern Coalfields LimitedApr 15, 2009 . (A Subsidiary of Coal India Limited). Jayant Project. P.O. JayantColliery,. Distt. Singrauli(M.P) PIN486890. Phone/Fax 07805-222228. REGD. POST. No. ... Sanction of competent authority for use of water from G.B.PantSagar (Rihand) has been obtained by. NCL, the then. Central. Coalfields Ltd. vide No.