Don't Laugh : We are police", this book was compiled by ?

Don't Laugh : We are police", this book was compiled by ?
 a) Bishan Lai Vohra I.G.P.
 b) Shanti Swaroop I.G. Police
 c) K.P.S. Gill D.G.P.
 d) None of these

Bishan Lai Vohra I.G.P