In 1981 he started his first Business, a textile weaving unit in Kandivali, Mumbai.
Along with his brother Surenda, he bought 250 acres land in Powai, Mumbai in 1985 and started a real estate Business under the name Hiranandani Gardens. Hiranandani Constructions is working on revamping and launching two townships that the developer acquired through a court auction for nearly Rs 1,000 crore. Hiranandani Estate is a township built in Thane, a part of the Mumbai Metropolitan Area in Maharashtra. Hiranandani Hospital was started in Powai in 2006 and Thane in 2011.
Hiranandani is on board of 17 schools, including the Hiranandani Foundation School in Powai and Thane. Hiranandani is the past President of the Maharashtra Chambers of Housing Industry; Chairman of Mumbai City, Development and Environment Committee of the Indian Merchants Chambers (I.M.C.) Mumbai, Member of the task force of the Government of India for reforms in housing and urban development and Member of the study group Slum Rehabilitation Scheme, Government of Maharashtra. Hiranandani was the adviser to the government of India on housing and habitat policy and real estate President of the Federation of Indian Chambers of Commerce and Industry (FICCI). Hiranandani is the chairperson on the Priyadarshni Academy which facilitates for social and cultural work. He is on Board of Trustees – Nathdwara Temple Board, Nathdwara (Rajasthan), Babulnath temple, Jhulelal temple. He is the President of the Hyderabad (Sind) National Collegiate Board, which manages 22 educational institutions including secondary and higher secondary schools, polytechnics, and degree and post-graduate colleges. He is also the former Chairman of Advisory Council of Confederation of Real Estate Developers’ Association of India (CREDAI). He is also a part of the Hon. Board of Advisors of IIMUN.
