Upping the ante against AAP convenor Arvind Kejriwal, he called the Delhi Chief Minister and his team "mentally sick".
The Shiromani Akali Dal president told a press conference that the AAP leader and his team have "stooped to a very low level" and sought an unconditional apology from him.
"Kejriwal is not even aware of the culture of Punjab," Sukhbir said, adding, "AAP has no respect for any religion. Kejriwal only sees political conspiracy whenever any action is taken against him or any of his team members."
On being asked about investigations into incidents of sacrilege committed in the past in Punjab, Sukhbir said investigations were going on.
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"Police are doing their job and the guilty will not be spared," he said.
Stating that AAP was "destroying" the glorious traditions of Punjab, Sukhbir demanded apologies from Kejriwal and his partymen Ashish Khetan and Sanjay Singh to Punjabis.
Khetan had earlier said the AAP manifesto was "the Bible, Gita and Guru Granth Sahib" for him.
"With Khaira joining us, BSP has been weakened in the Doaba region," said Sukhbir, adding that the party high-command would take a final call regarding whether to field Khaira from the Phillaur reserve seat or not in the 2017 Assembly polls.