He took office on 1 December 2019 when Vice Admiral Bimal Verma retired.

Rajeshwar is an alumnus of Indian Military Academy, Dehradun and National Defence College, Delhi.

[5] Rajeshwar was commissioned into the Indian army's Regiment of Artillery in December 1980.

He has held commands of an artillery regiment during Operation Parakram, an infantry brigade at line of control, General-Officer-Commanding XII Corps, Director General of Perspective Planning at the Integrated Headquarters and GOC of Romeo Force in Jammu and Kashmir.

He has also served in various United Nations Peacekeeping operations to Rwanda and Mozambique.