Vivek Chaand Sehgal

Cofounder and chairman of Samvardhana Motherson Group Vivek Chaand Sehgal returns to the rich list on a 50% surge in shares of listed Motherson Sumi Systems in past year as the exports-led firm benefited from a weaker rupee. The group, which has a partnership with Japan's Sumitomo Wiring Systems, is one of India's largest makers and exporters of auto parts such as rearview mirrors. It now has revenues of $5.4 billion and employs 60,000 people across 25 countries. Under son Laksh Vaaman, Motherson Sumi is expanding internationally in Europe, South America and South East Asia.