Rhenock (East Sikkim), July 12:Rhenock post office, a silent witness to the bustling border trade between India and Tibet through the Old Silk Route, is on track to be declared a heritage building by the Union government.Although no official document is available to show the year of the building’s construction, a brochure dating back to 1910 and preserved at the Ram Gauri Shangralaya museum in …
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