Bengal’s Achievements in last few decades. ———————————————— 1. Tata Group (HQ shifted to Mumbai) 2. Birla Group (HQ shifted to Mumbai) 3. Hin

Bengal’s Achievements in last few decades. ———————————————— 1. Tata Group (HQ shifted to Mumbai) 2. Birla Group (HQ shifted to Mumbai) 3. Hin