Randhawa's statement came as Sidhu has been questioning his party's government in the state for not being able to arrest Akali leader Bikram Singh Majithia.
A party insider from Uttarakhand told this newspaper that the rift is wide open for everyone to witness. “Sidhu and the CM can’t see each other eye to eye."
Singh, who faced an unceremonious exit from the state government last month, had said that he was looking at alliances with like-minded parties such as breakaway Akali groups.
The AAP alleged that former Punjab CM Amarinder Singh has decided to float his own political party on the instructions of PM Narendra Modi.
After Sidhu's resignation plunged the party in a turmoil, Punjab CM Channi met him and it was agreed to set up a coordination panel of the party to take key decisions.
Sidhu was appointed as the President of the Punjab Pradesh Congress Committee following months of turmoil in the state Congress unit.
The former CM is also likely to meet BJP president JP Nadda, sources said.
The BJP wants to fight on all 117 seats in the state this time around. At present, it has only two MLAs in the Assembly.
Congress leader Channi was sworn in as chief minister of Punjab, making him the first Dalit to hold the top post in the state.
Charanjit Singh Channi takes oath as Punjab CM, Sukhjinder Singh Randhawa and OP Soni sworn in as deputies
Punjab Governor Banwarilal Purohit administered oath to Channi at a ceremony held at the Raj Bhawan here.
Harish Rawat's reported remarks on Sidhu 'baffling', can 'undermine' new Punjab CM's authority: Sunil Jakhar
Rawat had reportedly said that the Punjab Assembly polls next year will be fought under Sidhu.
Channi, who is set to take oath at 11 am, paid obeisance at a gurdwara in Chamkaur Sahib in Rupnagar district on Monday morning. He will be the first Dalit to hold the post in the state.
Navjot Singh Sidhu's strategic advisor Mohd Mustafa Sunday attacked former CM Amarinder Singh for calling Sidhu 'anti-national'.
Charanjit Singh Channi's journey from being elected to municipal council to becoming first Dalit CM of Punjab
Charanjit Singh Channi had along with three other ministers rebelled against Amarinder Singh while choosing to side with the camp of Punjab Congress chief Navjot Singh Sidhu.
A resolution to this effect was passed unanimously in a meeting of the Congress Legislature Party here.