Koteswaram was credited with the setting up several "cyclone distress mitigation committees" with government, scientific community and public participation for information dissemination, planning of disaster management operations, setting up of cyclone shelters and the establishment of cyclone warning systems. He was associated with the World Meteorological Organization and served as its vice-president in 1971, the first Indian director-general to be elected to the post. The same year, when the "World Meteorological Congress" was held in Geneva, he was elected as the chairman of the Expert Committee which established the "WMO Tropical Cyclone Project", following the UN resolution in the wake of the 1970 Bhola cyclone which devastated Bangladesh. He was also a member of the "WMO Commission for Aeronautical Meteorology" (CAeM) and his participation was reported in the preparation of "Procedures for Air Navigations Services – Meteorology" (PANS-MET). When WMO initiated the "World Weather Watch" program in 1961, he was associated with the initiative and under the aegis of the I.Met.D, he contributed to the program by establishing a Regional Meteorological Centre (RMC) and a Regional Telecommunication Hub (RTH) in New Delhi. He was also credited with re-designing the structure of I.Met.D on a regional basis.