737134 is the PIN Code of Sumin, which is located in East Sikkim district, Sikkim state.
Sumin Post Office is located at Sumin, 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 Sumin PO is 737134. This Postoffice falls under Sikkim postal division of the West Bengal postal circle.