Even as PV Sindhu is relishing the taste of a chocolate cake at one of the many felicitations she has attended, C Kiran, her physio watching from the corner lets her satisfy her taste buds. (‘Rustom’, Hyderabadi biryani await Sindhu after Silver in Rio)A year and a half back, such spoils were unthinkable.Kiran has been working as a physio at the Gopichand academy for eight years and is seen as one of the main back-room boys behind Sindhu’s success.Sindhu won India’s second medal – a Silver in badminton women’s singles – at the recently-concluded Rio Olympics.Sindhu’s training routines were punishing.”Sometimes she would train and practice 10 to 12 hours a day and her day would begin at 4.15 in the morning. On other days when she would train less but running would be with the intensity of 100-200 heart rates per minute,” Kiran recalls.”We never give her schedule as a girl. 70 percent of her fitness sessions were with the boys. She made sure she challenged the boys. And when a girl challenges a boy they obviously don’t take it easily so it gets the best out of training,” he says.Kiran and his team of physios and trainers made an elaborate plan a year and a half before Rio even while Sindhu was recovering from a broken foot in early 2015.”My primary task was to help her recover as she strived to meet the stiff challenges set up by Gopi Sir,” he says.The business end of her preparations meant, off media, off mobile phone, off sleep.advertisementNow, as she eats cakes, gives media interviews in dozens and sleeps merrily, it may seem all worth it. That’s until she takes up the racquet again and gets into isolation for her next target.