Jaypee Infratech's managing director and three other senior officials of the firm have been booked for allegedly duping an investor, A case of cheating has been registered against the firm's Managing Director Manoj Gaur, Joint Managing Director Sameer Gaur, Senior Chief Manager Rajiv Talwar and Chief Manager Manoj based on a complaint filed by a Ghaziabad resident Nikhil Chandel at Dankaur police station.