S Varadarajan (Raja) is the Former CHRO & Head of Corporate Affairs at TATA SIA Airlines. Prior to that he was the executive president, HR at Tata Teleservices Limited (TTL). He has 28 years of experience in manufacturing, management consulting, financial services and telecom and business process outsourcing. Before being associated with Tata Teleservices Ltd, he was with Quattro Global Services, which he co-founded, he also worked with organisations such as Wipro Spectramind, American Express, and KPMG.