Anu started her career in Thermax in 1985 and later headed its human resources division from 1991 to 1996. After the death of husband, Rohinton Aga, she took over as Chairperson of Thermax, retiring in 2004 and succeeded by her daughter and company vice-chairperson, Meher Pudumjee. Anu has since remained on company's board of Directors, and involved with social work.
Anu was married to Rohinton Aga, a graduate from the Harvard Business School and gave birth to daughter Meher and son Kurush. Rohinton died in 1996 of massive stroke, and a little over a year later, her son Kurush died at the age of 25 years. Today, Arnavaz 'Anu' Aga lives in Pune, Maharashtra
Her daughter, Meher Pudumjee is the current Chairperson of Thermax, taking over from her mother in 2004. She is a post graduate in chemical engineering from the Imperial College of Science and Technology, London and joined Thermax in September 1990, and is also a member of the Confederation of Indian Industry's (CII) Family Business Forum and the Young Indians (YI).
After retiring from Thermax, she took to social work, and In 2010 she was awarded the Padma Shri for Social Work by the Government of India. She is currently Chairperson of Teach For India. She was nominated to Rajya Sabha, the Upper House of Indian Parliament on 26 April 2012, by President Pratibha Patil.