[1] Near the end of the legislative term, in August 2013, the ANC named him as Chief Whip of the Majority Party in the provincial legislature.
He replaced Humphrey Maxegwana, who was removed in line with an ANC resolution that Chief Whips should be selected from among the members of the party's internal Provincial Executive Committee.
[2] In the 2014 general election, Mrara was ranked 11th on the ANC's party list and retained both his legislative seat[3] and his position in the Chief Whip's office.
[4] In 2015, there was a minor nepotism scandal when the Daily Dispatch reported that he had hired the mother of his child as a researcher in his office.
[5][6] In February 2018, the ANC announced that it had removed Mrara from the Chief Whip position, replacing him with Fundile Gade; Mrara remained an ordinary Member of the Provincial Legislature and succeeded Gade as chairperson of the legislature's Portfolio Committee on Education.