Dr. Sharook Mubarak, Founder & CEO, Dr Polaris A doctor turned educator-entrepreneur, Dr Sharook is the visionary and driving force behind Dr. Polaris, a one-stop solution for supplementary learning for medical students and PG aspirants. The mobile app provides extensive learning support for future doctors and medical postgraduate entrance aspirants. The gaps he spotted during his MBBS and USMLE preparation days inspired Dr Sharook to create the supplementary learning platform.