As the leader of the coalition with the most number of seats, Anwar Ibrahim must be given the first chance to form a government and enough time to carry out proper negotiations. This is by convention. It is only if he fails that the leader of the coalition with the second highest number of seats should be given the opportunity to form the government.
Meanwhile, Aliran’s P Ramakrishnan has written a piece along these lines: By convention and democratic practice, Anwar should be asked to form the government
Meanwhile, a petition calling for Anwar to be installed as the PM has collected 130,000 votes overnight.