Fortune India’s 40 Under 40 issue is an annual feature where we identify 40 most promising young Entrepreneurs & Corporate honchos under the age of 40, in India across all disciplines.  This edition of the annual study packs in young achievers from industries as diverse as satellite manufacturing to sustainable hospi-tality; smart tech healthcare to data science and edtech to swappable batteries. Savour the dive into the minds of 40 of India’s best and brightest.