Sunidhi Chauhan fasts for around 16 hours every day; she has spoken about her weight reduction and stated that this might benefit your workout program.Sunidhi Chauhan is here to remind you that you don’t have to be crazy with your diet or workout program to achieve your fitness goals; simply be consistent. The singer has reached a new career pinnacle, owing in part to her tremendous stage performances and her attractive appearance. In a new interview with Mid-Day, Sunidhi, 41, revealed her diet and exercise secrets.