P.K. Mishra is a renowned name in the world of competitive exam preparatory books. He has authored several books for preparation of competitive exams in Railway, Automobile Engineering, Telecommunication, Civil Engineering and Mechanical Engineering. Among his most popular and useful books are Objective Civil Engineering, Objective Electronic Engineering, Objective Telecommunication Engineering, Objective Automobile Engineering, Comprehensive Mathematics For Competitive Exams, and Railway Psychological Test. He has also coauthored the book Communication In Underground Mines: RFID-based Sensor Networking with L. K. Bandyopadhyay and S. K. Chaulya.