Accepting the four Malacca defectors as part of Pakatan Harapan would be a grave mistake for the coalition, according to Bukit Gelugor MP Ramkarpal Singh.

He was responding to Harapan chairperson Anwar Ibrahim's view that the four Malacca assemblypersons who defected to topple the BN-led state government should not be looked at the same way as those behind the Sheraton Move last year, as they were returning the people's mandate.