In his career in business, Chandy worked in and led various companies. He became a Director of Lever Brothers in 1956 and played an important role in the formation of Hindustan Lever Limited, which was later renamed as Hindustan Unilever. He later became the chairman of the company.[2]
In 1961, Bidhan Chandra Roy, the then Chief Minister of West Bengal, invited Chandy to help set up the first Indian Institute of Management at Calcutta. He served as the director of the institute, named Indian Institute of Management Calcutta, for five years.[citation needed]
K.T. Chandy is considered one of the global pioneers of social marketing, the practice of applying commercial marketing approaches for behaviour change and social benefit.[3] In 1963, the Central Family Planning Board of the Government of India set up an Evaluation Committee to examine the current national family planning program and make suggestions for improvements to be incorporated into India's Fourth Five Year Plan. A subcommittee on contraceptive materials was organized. This subcommittee requested one of its members, Mr. K. T. Chandy, then Director of the Indian Institute of Management, Calcutta, to call upon members of private industry in India to consider ways of extending the distribution of contraceptive services, especially the condom, through commercial channels.[4]
Chandy was appointed as the Chairman of Food Corporation of India in 1967. In 1968, he became the Chairman of Hindustan Steel Limited, which is now a part of Steel Authority of India Limited. In 1972, he returned to his home state of Kerala and took over as the Chairman of Kerala State Industries Development Corporation (KSIDC), a position in which he served till 1978.[citation needed]