Yug and (inset) father Ajay Devgn

Several industry folk are daring each other with fitness challenges. It all started after Union Minister Rajyavardhan Rathore spoke about the importance of fitness and urged the celebrities and audience to share their videos with a hashtag #HumFitTohIndiaFit. Yesterday, Ajay Devgn took to social media to share a video of son Yug. The 7-year-old has managed to leave everyone dumbstruck as he is seen going through the paces in a gym.