After his engineering degree , he started his career in information technology industry with HCL Technologies and then moved to advertising at Lintas ( now Lowe Lintas ) .
Ratan is an alumnus of Indian Institute of Technology Kharagpur and Harvard Business School .
After Ratan 's engineering degree , Ratan started his career in information technology industry with HCL Technologies and then moved to advertising at Lintas ( now Lowe Lintas ) .
Ratan is an alumnus of Indian Institute of Technology Kharagpur and Harvard Business School .