ISLAMABAD: Pakistan Muslim League-Nawaz’s (PML-N) Shehbaz Sharif on Monday took an oath as the country’s 24th prime minister at the President’s House in the federal capital. President Dr Arif Alvi administered the oath to the newly-elected premier in a ceremony which was attended by several dignitaries including Chief of Army Staff (COAS) Asim Munir. Meanwhile, leaders of the country’s mainstream political parties …