Reddy joined the trade union movement as a young worker in 1948 and was elected general secretary of INTUC Andhra Branch in 1950.

He was elected vice-president of international Confederation in March 1988 at Melbourne and he has since been re-elected continuously by the World Congress, the last one held at Copenhagen, Denmark, in 2018.

He has been the chairperson of Regional Board for Workers Education, Hyderabad, and member of 2nd National Commission on Labour.

Road Transport Corporation, Hindustan Salts Ltd., Union Bank of India, Hyderabad Allwyn Limited and vice president of A.P.

Reddy represented India in conferences, summits, forums, meetings held at U.S., Russia, China, Nepal, Denmark, Philippines, United Kingdom, South Korea, Indonesia, France, Belgium, Australia, Singapore, Switzerland, Italy, Japan, Hong Kong, Sri Lanka, Canada, etc.