The Train (1970)

Hardworking, capable, honest and dedicated CBI inspector Shyam Kumar is assigned the case of bringing to justice the criminals behind the use of fake cheques to purchase commodities. The major draw-back in this case is that the perpetrators try the best possible ways to eliminate all evidences of this crime. As Shyam get down to the bottom he will find that this case gets more difficult as some people are not who they claim they are.