Islamabad [Pakistan], May 19 (ANI): Polling is being conducted for the by-election in Multan’s NA-148 constituency of Pakistan, with the main contest between the Pakistan Peoples Party (PPP) and the Sunni Ittehad Council-Pakistan Tehreek-e-Insaf (PTI) coalition, Pakistan-based Dawn reported. The seat had fallen vacant after PPP leader Yusuf Raza Gilani, the recently elected Senate chairman, stepped down. In the polls held on February 8, Gilani registered to win in the seat by 293 votes. Earlier in April, Yousaf Raza Gillani and Pakistan Muslim League-Nawaz (PML-N) leader Syedal Khan Nasir were…