This paper underlines use of discrete-event simulation to increase throughput of a manufacturing facility. The literature survey shows brief information about the recent work done by the various researchers in application of discrete-event simulation in manufacturing industries. The methodology followed while doing study is a stepwise procedure of a simulation study. A case study shows the way to solve the problems in manufacturing by using discrete-event simulation. Alternate possible scenarios are compared, and best scenario is selected as a solution of the problem.