NEW DELHI - India’s High Commissioner to Britain Navtej Sarna was on Sept 22 appointed as the next Ambassador to the US. “Navtej Singh Sarna (IFS: 1980) has been appointed as the next Ambassador of India to the United State of America,” an External Affairs Ministry statement said. “He is expected to take up the assignment shortly,” it added. He takes charge after Arun Kumar Singh retired last month-end.