He has earlier served as Additional Secretary and Secretary in the Cabinet Secretariat, Government of India. In addition to other responsibilities given to him, Sharma was looking after the cabinet proposals of all infrastructure, economic, finance, industry, Agriculture and allied ministries of the Central Government. He was Member of the Project Monitoring Group set up in the Prime Minister’s Office.
He worked as the Managing Director of Kochi Metro Rail Ltd., Kochi with full additional charges of Additional Chief Secretary (Special Projects-Infrastructure) and Industries in Kerala from September 2019 to March 2021. Besides Kochi Metro, he was also executing other important projects like Kochi Water Metro Project, Reconstruction and Rejuvenation of Canal Systems in Kochi and Development of Bliss City, an entertainment, wellness and hospitality city in Kochi.
As Additional Chief Secretary, Government of Kerala, he was monitoring the implementation of mega infrastructure projects like Semi-High Speed Rail, Airport, Ports, Smart Cities, Multi-modal Transport Hub, Waste to Energy Projects, Kochi-Bangalore Industrial Corridor and Development of Industrial Townships and Integrated Smart Manufacturing Clusters in Kerala.