Nawshir is an independent director on the boards of Exide Industries Ltd., Tata Power Company Ltd., Thermax Ltd., Tata Power Delhi Distribution Ltd., Coastal Gujarat Power Ltd., Tata Power Renewables Energy Ltd., Walwan Renewables Energy Ltd. and Centre for Advancement of Philanthropy.
Since 2003 Nawshir has been involved in the movement for improved governance in the corporate sector.
Nawshir is a Fellow of the Institute of Chartered Accountants of India. He was with S.R.Batliboi & Co./Ernst & Young, from 1967 till his (early) retirement in April 2003, in its Calcutta and Mumbai offices. He also worked in the London office.
Nawshir was the country head of Jardine Matheson Ltd. for over ten years after retiring from the profession, during which time he served on other boards of companies and charities.
Nawshir has contributed to the governance and accounting professions, being a speaker or the chair at conferences in India & abroad and authoring a number of professional publications. He has chaired and served on the boards of various professional bodies and chambers of commerce.