He is credited with the formation of the first private-public partnership Indian Community Welfare Committee in the United Arab Emirates during his assignment as Consul General of India in Dubai (1998-2001).
[7] This platform, under the patronage of the Government of India, brought together stakeholders from the private sector, public undertakings, and individual civil society representatives, including women social workers, to deal with issues facing Indian nationals in distress.
He was responsible for the implementation of projects inducting modern defence systems into the three wings of India's armed forces during his assignment, including the T-90 main battle tank,[8] and the Su-30MKI fighter aircraft.
[3] Mukerji was responsible for India's foreign policy planning and review, participation in international organizations, border management, and cyber issues as Additional Secretary in the Ministry of External Affairs from 2010 to 2012.
[24] The Review of the World Summit on the Information Society (WSIS) by the United Nations General Assembly endorsed accelerating the use of ICTs for development, including bridging the digital divides.
[26] India became the first UN troop contributing country to create a Virtual Wall in honor of her fallen UN peacekeepers, which was launched by Mukerji at the United Nations on 29 May 2015.
Participating in the Leaders' Summit on Peacekeeping on 28 September 2015, Prime Minister Modi called for this memorial wall to be created quickly, affirming India's readiness to contribute, including financially, towards this objective.
[29] The Resolution moved by India attracted a record number of 177 co-sponsoring countries, and was tabled, negotiated and adopted between 27 September 2014 and 11 December 2014, making it one of the fastest initiatives of its kind to be implemented in the United Nations General Assembly.