Rahul Sardana, is a Physics instructor and mentor having riexperience of about 20 years in the field of teaching Physics to JEE and NEET aspirants. Together with teaching, authoring books for engineering and medical aspirants has been his passion. He authored his first book ‘MCQs in Physics’ in 2002 and has then authored many books for JEE and NEET students. He is also a motivational speaker having skills to motivate students for achieving success in life. Throughout this journey, under his guidance and mentorship, many of his students have become successful engineers and doctors