Mr. Tarun Bajaj holds a bachelor's degree in commerce from Shri Ram College of Commerce, Delhi University, Postgraduate Diploma in Management (PGDM) from Indian Institute of Management. Ahmedabad (IIMA), postgraduate (M.Sc.) from London School of Economics and Political Science and Chartered Financial Analyst (CFA) from Institute of Chartered Financial Analysts of India, Hyderabad.

Mr. Tarun Bajaj has spent 34+ years of his professional career as a Civil servant in the Indian Administrative Service. He was the ‘Revenue Secretary, Government of India’ before he superannuated in November 2022. Mr. Bajaj played a key role in the stabilisation of the Goods and Services Tax (GST) and was also instrumental in taking steps that resulted in substantial increase in collections of revenue under GST and Income Tax. He was also responsible for upgrading technology in the administration of both Direct and Indirect Taxes resulting in transparency and efficiency in the working of the two departments. As the Economic Affairs Secretary, he was responsible for various important policy matters related to the Indian economy, including fiscal policy, investments and infrastructure financing, relationships and engagement with Multi-lateral banks and institutions and pursuing India's interests and priorities in the G-20 discussions. Mr. Bajaj played a key role in formulating the Government's economic response to the COVID-19 pandemic, including the rollout of various relief measures and economic stimulus packages. Mr. Bajaj has also served as the Joint Secretary in the Department of Financial Services looking after policy matters related to Banking, Insurance and Pension sector.

In the State of Haryana, Mr. Bajaj has mostly worked in the areas of Finance, Taxation, Industry and Infrastructure Development. He has also served as the Managing Director of a few State Public Sector Companies.

As Economic Affairs Secretary, Mr. Bajaj chaired the National Investment and Infrastructure Fund. He has also served as the Director on the Central Board of the Reserve Bank of India and on the board of SEBI. He has served as Governor of India for International Fund for Agriculture Development and as Alternate Governor of India for the World Bank (for the constituency of India, Bangladesh, Bhutan and Sri Lanka), Asian Development Bank, Asian Infrastructure investment Bank and New Development Bank. He has earlier served on the Boards of Small Industries Development Bank of India (SIDBI) and a few Public Sector Banks and Insurance companies.