Sarwar, a Glasgow member of the Scottish parliament (MSP), succeeds Richard Leonard who resigned in January.
Anas is son of Punjab Governor Chaudhry Mohammad Sarwar. In a tweet on Saturday, he said that “as a father I am overjoyed & proud to see you, @AnasSarwar make history & take on the responsibility of rebuilding the Scottish Labour Party. I am sure that will do justice to the role with sincerity/commitment & will strive to meet the expectations of all who voted for you.”