New Delhi, Oct. 1 -- A few years ago, Huda (she goes by one name) from Delhi, noticed she was gaining weight, losing hair and always had a vague sense of anxiety. The 26-year-old communications professional spent long hours at work and never managed to get her eight hours of sleep. She enrolled at a local gym for strength training just to keep off the weight but found it renewed her confidence instead. "Lifting gave me something more than physical strength; it gave me confidence. That confidence pushed me to resign from my job," she shares. As she worked out for 9-10 months regularly, it became clear to her that if she could change through training, she could help others do the same-and a fitness coach was born.

Now, when a client tells ...