Dr Thomas Mathew is a retired bureaucrat belonging to the 1983 batch of the Indian Administrative Service. He holds a PhD from Jawaharlal Nehru University and is a Bachelor of Law from Delhi University. He has worked in key roles in the ministries of Finance, Defence and Industry, and was Additional Secretary to President Pranab Mukherjee.

Dr Mathew met Ratan Tata in a professional capacity about three decades ago. They continued their interactions due to their shared interests. In 2018, Dr Mathew began work on Ratan Tata's biography.

Now retired, Dr Mathew serves on the board of several companies and is consulted on corporate matters. He has several publications to his credit and regularly writes opinion pieces for leading dailies. He lives in Gurugram, pursuing his passions of writing, nature conservation and photography.