Actor Aasif Khan, known for starring in 'Pataal Lok' and 'Panchayat', was admitted to Kokilaben Hospital in Mumbai last month due to gastroesophageal reflux disease. Nearly three weeks later, Aasif shared he has quit smoking. "They say it takes 21 days for every good or bad habit to break...Today marks 21 days since I quit smoking," he wrote on Instagram.