Samvardhana Motherson Group's billionaire Chairman Vivek Chaand Sehgal said his late mother was worried about him as he wasn't very good in studies. "So she said let's get into business. From there, we never looked back really," added Sehgal, who founded Motherson as a silver trading outfit with his mother. The group's Motherson Sumi Systems is India's biggest car-parts supplier.