Mohan Katarki practises in the Supreme Court of India. Mr Katarki served as a Member of the National Law School of India University, Bangalore (2005-2008). At present, he is a member of the Advisory Board, Karnataka State Law University Students Law Review and the Board of Management and Planning, Karnataka State Law University. Mr Katarki developed a specialised practice in Inter-State Water Law concerning sharing or allocation of waters between the States in the Inter-State river and river valley. Mr Katarki has also presented papers at various national and international conferences and seminars including; Regional Conference on Water Resources at Teslic, Bosnia & Hercegovina (2001); International Water Law Conference at Colorado Law School, Boulder, U.S.A (2002); and Inter-State & International Water Disputes Seminar conducted by WB National University of Juridical Sciences, Kolkata (2013). Additionally, he has published articles and papers in various news papers, journals and books.