Bigg Boss 14's Jaan Kumar Sanu undergoes a major physical transformation; thanks Eijaz Khan for 'harassing him' during workouts

Eijaz Khan was one of the fittest contestants on Bigg Boss 14. And it seems like Jaan Kumar Sanu has been diligently following the fitness tips given by Eijaz and taken it as a learning experience after coming out of the Bigg Boss house.