Jaypee Roorkee Cement Grinding Unit . JP Associate: Reports, Company History, Directors.Jaiprakash Associates Jaypee Roorkee Cement Grinding Unit Ltd. (JAL), the flagship company of the Jaypee Group, was a Diploma in civil engineering in 1950 from the University of Roorkee, had a stint having clinkerzation capacity of MnTPA Cement Grinding Capacity of 5 .