New Delhi, Sept 19 (UNI) Envoys of Pakistan, Tanzania, Ghana, and Burundi today presented their credentials to President Ram Nath Kovind. High Commissioner of Pakistan Sohail Mahmood, High Commissioner of Tanzania Baraka Haran Luvanda, High Commissioner of Ghana Michael Aaron Nii Nortey Oquaye and Ambassador of Burundi Stella Bdiriganya presented their credentials to the President at a ceremony held at Rashtrapati Bhavan. UNI AR ADG 1913