Mondol has been with NTPC for over 35 years and has held several key leadership positions across multiple business units.

 Mondol joined NTPC as 9th Batch Executive Trainee (ET) in 1984. He has vast experience and comprehensive knowledge of the power sector and has worked in both power plant and corporate functions. He started off his journey with the project execution and commissioning of 3X500 MW units at Ramagundam and 4X210 MW units at Kahalgaon.

 Mondol as a strategic planner has led several initiatives at NTPC. In 1998, Shri Mondol joined Corporate Commercial where he worked towards developing commercial & marketing strategies, execution of domestic and international Power Purchase Agreements (PPAs), formulation of Tariff Regulations with CERC, participation in Ultra Mega Power Plant (UMPP) bidding, etc.

 Mondol was also associated with the Government of India where he represented NTPC for the formulation of various policies and statutes including the Electricity Act 2003, the National Electricity Policy, the Tariff Policy and the Competitive Bidding Guidelines.

He joined Corporate Planning in 2012 as head of Strategic Planning Division and was also responsible for periodic review of Business Plan, Organisational Restructuring, identifying risks of the company and its mitigation through comprehensive Enterprise Risk Management Policies etc. Shri Mondol took charge as Business Unit Head (BUH) of Khargone in March 2015 and was responsible for execution of 1320 MW Green Field Power Project involving land acquisition, Right of Use, Right of Way, R&R plan, Project Planning & Construction, Boundary Management with the local administration, State Government and other statutory authorities.

Before his appointment as Director (Commercial), he has worked as RED-WR1, RED (DBF & Hydro), ED (PP&M) and ED (Commercial).