Mahesh joined as a partner of RajMS & Co in the year 2016. He is a Fellow Member of “The Institute of Chartered Accountants of Nepal”, member of “The Institute of Chartered Accountants of India” and served 2 years tenure as executive member of the Association of Chartered Accountants of Nepal. He completed his chartered accountancy from the Institute of Chartered Accountants of India in the year 2004. He was Associate Commercial Director in Thompson Nepal Pvt. Limited from January 2008 to December 2009 He had worked as Audit Manager/Consultant in BRS Neupane & Co. from August 2004 to December 2007. He also worked in the capacity of Executive Chairman in G & D Communication Pvt. Ltd, a joint venture with India.

He has worked as an Account Expert from RajMS in Institutional Strengthening project of Nepal Electricity Authority (Biggest public sector organization in Nepal) funded by the World Bank 2011 to 2012. He was responsible for preparing chart of account accounting policies in line with IFRS, cleaning backlogs and un-reconciled accounts, preparing action plan and training hundreds of staffs of NEA.  He has conducted many financial audits of private companies, financial institutions, NGOs/INGOs, public enterprises, multilateral and bilateral till date.