Mitali Kumari completed a winter internship at Larsen & Toubro from December 14, 2015 to January 12, 2016. Larsen & Toubro is one of India's largest engineering companies, founded in 1938. During the internship, Kumari learned about switchboard components, an Oman project involving gas depletion compression, low voltage switchboard schemes, load data calculation methods, key single line diagrams, automatic/manual changeover schemes, and instrumentation concepts like measurement, analysis, control of safety valves and control valves.