6. Alia Bhatt: The darling of Bollywood garnered huge support from her fans with her acting skills. But not many of us know that the fashionista was once a chubby girl who was on the heavier side. She wanted to make sure that she lost about 20 kilos of weight before she starts acting in her first film ‘Student of the Year”. Alia lost an enormous 16 kilos in three months by following a strict diet and working out rigorously. Her fitness session includes cardio, dumbbell raises and push-ups.