The 3 major causes of all deaths and diseases.

Author: Master Vikrant RohinMaster Vikrant Rohin is an international author, and more than four countries’ schools are using his books in the core curriculum of education. He is the author of twenty different subject books. History, Economics, Chemistry, Physics, English, Biology, Geography etc. Most of his students hold high-ranking positions in the public and private sectors. He has cracked the world’s toughest exam, the "Civil Services Examination (UPSC)," eight times. Always a topper in academics, he was also a top-class sportsman, a state boxer, and a basketball player.