Pakistan Prime Minister Shehbaz Sharif on Saturday criticised President Dr Arif Alvi for returning Supreme Court (Practice and Procedure) Bill, 2023, unsigned and called him a worker of the Pakistan Tehreek-e-Insaf (PTI), reported Geo News. "President Alvi returning the Supreme Court Bill duly passed by Parliament is most unfortunate," the prime minister said in a hard-hitting tweet hours after the president returned the bill to the legislature.