Mr. Ashok Kumar Sinha has done M.Sc in Chemistry from the Indian Institute of Technology, Kharagpur, India, 1975-77. He has 39 years of experience in a wide range of positions in the tax administration, including in international capacity building for developing and emerging economies. He worked and supervised every aspect of tax administration, including audit, collection and specialized investigation of tax frauds as well as international taxation. He has also worked as Vice chairman of the Income Tax Settlement Commission, the highest arbitration body on tax disputes and four years as Chief Commissioner and later as the Principal Chief Commissioner of Income Tax. He holds the top most field position in the Delhi region, he exercised control and superintendence of tax administration in Delhi region.