Throughout his career, the Flag Officer has served in several important roles, including afloat tenures on INS Gomati, INS Nirghat, and INS Trishul. His overseas assignments include serving in Russia with the Talwar Class Training Team and as the Defence Adviser at the High Commission of India in Nigeria. He has also worked extensively at the Naval Dockyards in Mumbai and Visakhapatnam.
At Naval Headquarters, he held various key appointments related to Weapon Equipment, Ship Production, and Information Technology, and also served as the Additional Director General of WESEE, the Navy’s premier R&D establishment. During his command, INS Valsura, a leading Electrical and IT training institution, was awarded the President’s Colour for its outstanding service to the nation.
Rear Admiral Marwaha received the Vishisht Seva Medal (VSM) in 2021 in recognition of his exemplary and dedicated service.