Adviser to the Prime Minister on Finance and Revenue Shaukat Tarin was sworn in as senator on Friday. Senate Chairman Sadiq Sanjrani administered the oath to the newly-elected senator. Earlier, Shaukat Tarin was elected senator from Khyber Pakhtunkhwa (KP). The seat fell vacant after Pakistan Tehreek-e-Insaf (PTI) leader Muhammad Ayub Afridi resigned as member of the upper house last month. Out of 145 members of the provincial assembly, 122 cast their votes during Senate by-elections. The finance adviser won the seat after securing 87 votes.