He further said Sidhu's resignation has been forwarded to Punjab Governor V P Singh Badnore.
The incident occurred in Takkarpura village of Patti town on the intervening night of Tuesday and Wednesday, they said.
The ED action, sources said, has been initiated after taking cognisance of a 2018 FIR of the Punjab Police against some companies and individuals alleged to be involved in illegal sand mining in the state.
Kejriwal then said that though he had wanted party MP Bhagwant Mann's name to be declared as the chief ministerial candidate, the latter insisted that the people of Punjab should make this decision.
The move comes a day after Channi reached out to Sidhu and offered to resolve issues through talks.
Soon after taking the oath of office, the newly-sworn in Punjab Chief Minister Charanjit Singh Channi said his government is standing with farmers and will appeal to the Centre to withdraw the three farm laws.
Bhagwant Mann will take oath as the chief minister of Punjab on March 16 at Khatkar Kalan, the ancestral village of iconic freedom fighter Bhagat Singh, party sources said on Friday after he met the party's national convener Arvind Kejriwal in Delhi.
Channi's nephew Bhupinder Singh alias Honey was arrested in this case by the agency.
Mann, 48, is a two-time MP from Sangrur and is the party's state unit chief.
A panel of Union ministers will hold a fourth round of talks with farmer leaders in Chandigarh on Sunday over their demands, including loan waiver and bringing an ordinance on giving legal guarantee to a minimum support price (MSP) for crops.
Sidhu, who had been attacking the AAP-led government in the state over various issues including the law and order situation, said Punjab's resurrection was possible only with a collective effort.
Raninder Singh has been asked to depose at the central probe agency's office in Jalandhar on October 27, they said.
He also said he even declined the post of deputy chief minister offered by Congress leader Rahul Gandhi to him.
Farmers protesting to press the Centre for their various demands will stay put at the two protest sites on the Punjab-Haryana border till February 29 when the next course of action will be decided, their leader Sarwan Singh Pandher said on Friday.
Congress leader Rahul Gandhi on Thursday said the party will go into the Punjab assembly polls with a CM face and the decision on it will be taken soon after consulting party workers.
Aam Aadmi Party national convener Arvind Kejriwal on Thursday said his party will be asking the general public as to who should be the party's chief ministerial face in the Punjab Assembly polls, even as he indicated that his own preference for the post was state unit president Bhagwant Mann.
Sukhjinder Singh Randhawa, a minister in the outgoing cabinet of Amarinder Singh, is likely to be the state's new chief minister, Congress sources said on Sunday.
Asserting that he will not let Punjab plunge into anarchy at any cost and nobody can be allowed to take the law into their hands, the chief minister said he has been forced to toughen his stance as his repeated appeals to perpetrators of such acts had been ignored.
Sidhu and Chief Minister Charanjit Singh Channi are the main contenders for the chief ministerial candidate. Both have assured Gandhi they will stand by the party's decision.
Farmer leaders participating in the 'Delhi Chalo' agitation on Friday said the cremation of Shubhkaran Singh, who died amid clashes between Haryana Police and Punjab farmers, will not take place till the Punjab government registers a case against those responsible it.
The Congress is likely to declare its chief ministerial face for Punjab on February 6 when former party chief Rahul Gandhi will visit the poll-bound state, party sources said.
Punjab's daily COVID-19 count has been relatively low and on Tuesday, 635 new cases were recorded which pushed the active tally to 4853.
Some media reports claimed he may meet some Bharatiya Janata Party leaders in Delhi after which Amarinder Singh's media advisor Raveen Thukral sought to clarify the reason for his visit.
Congress leader Charanjit Singh Channi was on Monday sworn in as the chief minister of Punjab, making him the first Dalit to hold the top post in the state.
Sukhjinder Singh Randhawa, a minister in the outgoing cabinet of Amarinder Singh whose name is doing the rounds among the probables to be the new leader of the Congress Legislature Party (CLP) in Punjab, on Sunday asserted that he has never hankered after posts.
Ahead of farmers' tractor parade in Delhi on Tuesday, Punjab Chief Minister Amarinder Singh on Monday appealed to farmers to ensure their rally remains peaceful as their stir against agri laws has been so far.
Union ministers Arjun Munda, Piyush Goyal and Nityanand Rai and farmer leaders from Punjab will meet on Sunday for the fourth round of talks.
The resignation also signals a continuing saga of unaddressed concerns of young leaders, once considered close to former Congress president Rahul Gandhi.
Singh stressed that if Punjab was able to meet its target of administering two lakh shots a day, then its current supplies will last only three days.
Addressing the members of the House, Singh said agriculture is a state subject but the Centre ignored it. "I find it very strange what the government of India wants to do," he said.
'If such a practice were feasible, every state would seek additional funds, posing a significant risk to the overall health of the economy.'
"You vote thinking that you are voting to make Arvind Kejriwal as the chief minister (of Punjab). Your vote is for Kejriwal," Delhi's Deputy Chief Minister Manish Sisodia said.
A police complaint has been lodged at Barakhamba police station in Delhi, against 26 Opposition parties "for improper use of the name of INDIA and use of the said name for the undue influence and personation at elections."
He said the farmer's agitation in Punjab against the new farm laws could lead to 'serious consequences' for national security and alleged that China and Pakistan were seeking to disturb peace in the country's border state. Stressing that his intention was not to disturb peace, Singh said he was trying to 'save' his state's farmers as the Centre was 'playing with' their livelihoods.
he Punjab government had also sought a judicial declaration that the assembly session held on June 19 and 20 was "legal and that the business transacted by the House is valid".
Navjot Sidhu has been given power and new and renewable energy sources, and his tourism and cultural affairs portfolio has been given to Charanjit Singh Channi.
KTR indirectly referred to the BJP and Prime Minister Narendra Modi and said the country does not need opposition unity on the basis of blind hatred against one party or one man, but on a positive model of governance
The merger was sealed on Friday during a meeting between Badal and Rahul at the latter's residence here where Singh and All India Congress Committee General Secretary Shakeel Ahmad were also present, they said.
The move is a threat to Indian and global security, says Amarinder Singh.
'Punjab chief minister @capt_amarinder has decided to go into 7-day self quarantine, as per government protocol and the advise of his doctors, after two MLAs who met him in the Vidhan Sabha tested positive for #COVID19,' tweeted Raveen Thukral, the media advisor to the chief minister.