737133 is the PIN Code of Upper Khamdong, which is located in East Sikkim district, Sikkim state.
Upper Khamdong Post Office is located at Upper Khamdong, East Sikkim of SIKKIM state. It is a Branch Post Office. A Post Office (PO) / Dak Ghar is a facility in charge of sorting, processing, and delivering mail to recipients. POs are usually regulated and funded by the Government of India (GOI). Pin code of Upper Khamdong PO is 737133. This Postoffice falls under Sikkim postal division of the West Bengal postal circle.