Umno information chief Shahril Hamdan has taken to social media to list four reasons why the Aku Janji (letter of undertaking) that allegedly asked GE15 candidates to back BN chairperson Ahmad Zahid Hamid for premier is fake.

"Firstly, the letterhead on the fake letter is an Umno one, but this is a general election so it should be BN.

"Secondly, the...