According to reports, the defectors presented themselves to the Kankia Local Government chapter of their new political abode, on Saturday.
Addressing the media on behalf of other defectors, Usman said that they decided to jump ship because the APC neglected them.
“It is a fact that I led many others in the struggle that ensured victory for the APC in the 2015 general election.
“I campaigned vigorously against the then PDP candidate, Musa Nashuni, who is from my own local government – Kankia – and ensured he lost even his village, to Aminu Masari of APC.
“However, after the polls and the subsequent assumption of Masari as governor of Katsina State, majority of us were neglected by the APC.
“In my own case, some party stalwarts in Kankia went to the party’s state headquarters and ensured that I was suspended from its fold, for reasons best known to them.
“I have been on suspension for 14 months, with the state office refusing to recall me as directed by the Northwest Zonal Chapter of the party, following my successful petition against the illegal action,” he said.
He said that his defection to the PDP was not to contest for any position.
“We left the party because of neglect. The 4,000 people defecting with me are from the 10 political wards of Kankia,” he said.