RK comes from a humble business family. His father Late Shri O.P. Kapoor made a name in India and with support from his three sons Mr. Deepak Kapoor, Mr. Kiran Kapoor and Rajan Kapoor, to set up a chain of stores under the name Kapoor Lamp Shades Co. pan India and abroad.

RK, in his thirties Set up a real Estate Co. and did various projects. His heart lied in a small company he set up known as the Golden Peakock Overseas Limited for exports.

He started with manufacturing Lamp holder (Sockets) and later to Electrical accessories and became the largest exporter of the same from India. GPL sells its products to the countries like U.S.A., Australia, China and many more.

As a tribute to his parents, who started their careers making the lampshades, RK set up a Lampshade making factory with a Danish Collaboration under the name Indo Dan Lampshades Pvt Ltd. which too became the largest exporters of Lampshades from India.

At present, his interest revolves around designing new and innovative products in electrical and engineering fields. He and the company GPL have approximately two dozen worldwide patents of products under their name a few being Wedge Cable Gripper, An Improved Push-in Type Channel Gripper, a suspended rod display system fitted with turn lock channel gripper and turn lock tiltable and fixed holder for picture frame, an improved screwless Pushbar Lamp holder and many more.