Sharma is currently in the city to attend the 70th session of the United Nations' Board of Auditors here, a CAG statement said.
Sharma, along with Auditor Generals of Tanzania Mussa Juma Assad and of the United Kingdom Amyas Morse approved and signed 11 UN Audit reports yesterday.
These reports will be presented to the UN General Assembly and to other governing bodies.
The reports cover important UN bodies including UNICEF, UN Development Programme (UNDP), UN High Commissioner for Refugees (UNHCR), UN-WOMEN, UN Office for Project Services (UNOPS) and UN Headquarters.