LONDON Apr 05: continuous struggle, dedication and devotion leads people to their success. Same is the story of a British Pakistani Yasir Khattak who has earned Rs. 130 million from a simple yet amazing smart application for mobile. He developed a switch and socket in his school days which can be turned on and off through a smartphone app. Thist application can also calculate the amount of electricity consumed and inform the user of necessary safety precautions which will help the users in many ways.