The visiting side scored through Moustafa Tarek Mashal (4th minute), Almeoz Ali (47th) and Yusuf Adurisag (86th).
The Congress appeared to have bounced back in the state's political landscape after suffering a humiliating defeat at the hands of the AAP in the 2022 Punjab assembly polls.
The next phase in the game saw both teams create half-chances but both the backlines did enough to thwart the danger.
The matter is being investigated, they said and added that so far, there is no evidence that the "Khalistani" slur was used.
ATK Mohun Bagan entered the semifinals of the Indian Super League with a win over Hyderabad FC in Kolkata on Saturday.
FHe is the only one among 17 ministers from the outgoing council of ministers who lost the Lok Sabha polls to be reappointed minister.
Sidhu was in Patiala to take part in a protest against inflation when the Supreme Court verdict came in.
Amarinder Singh was ousted from the party and he later joined the Bharatiya Janata Party.
The development has come amid a power tussle that polarised the ruling party in the state headed for elections in just about four months.
Earlier in the 16th minute, Ashutosh Mehta showed excellent skills and tried to create a chance from the right flank. CFC defenders intercepted the attack before he could hand the ball over to Manvir Singh.
A late goal from Amine Chermiti saw Mumbai City FC stun Kerala Blasters FC 1-0 in a closely-fought Hero Indian Super League clash at the Jawaharlal Nehru Stadium, in Kochi, on Thursday.
However, the Army, in a statement, said since Singh's cause of death was a self-inflicted gunshot injury, no guard of honour or military funeral was provided, in accordance with the existing policy.
India will face Pakistan in their opening outing at the Sree Kanteerava Stadium on Wednesday
This result meant a win for ATK Mohun Bagan against Hyderabad FC on Monday would ensure them of the League Winners Shield and a maiden AFC Champions League spot.
Mumbai upped the ante and started creating a few chances after going behind.
Speaking to the media persons in Delhi on Sunday, the Rajya Sabha member said: "I have declined the offer to be the next Punjab CM. I believe Punjab CM face should be a Sikh."
Coach Manuel Marquez seemed to have prepared well for the Mumbai test. The Nizams pinned their opponents with their high pressing approach, thus nullifying Mumbai's danger.
Aam Aadmi Party candidate Sushil Rinku on Saturday won the Jalandhar Lok Sabha by-election, defeating his nearest rival and Congress nominee Karamjit Kaur Chaudhary by a margin of 58,691 votes.
Punjab Congress chief and former chief minister Amrinder Singh on Friday visited the Dera Sacha Sauda in Sirsa and met its chief Gurmeet Ram Rahim Singh to seek the support of the sect followers in favour of his party for the January 30 assembly polls.
FC Goa missed the chance to enter the second leg of their Indian Super League (ISL) semi-finals with an advantage as they squandered a lead twice in their 2-2 draw against Mumbai City FC
Mumbai City FC beat FC Goa 6-5 penalties to reach the ISL final
Gandhi was abroad when the killing took place and returned over the weekend.
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.
Bengaluru FC's academy graduate Vinith Venkatesh scored the winner as the Blues picked up their first points of the ISL season with a 1-0 win over East Bengal.
At least nine separatist organisations supporting terror groups have their bases in Canada and despite multiple deportation requests Ottawa has taken no action against those involved in heinous crimes, including the killing of popular Punjabi singer Sidhu Moosewala, officials in New Delhi said on Tuesday.
Granada and Bilbao complete match suspended after supporter's death
With things threatening to get out of control and descend to fisticuffs the debate was hastily called off
A controversial bill that sought to debar women in Jammu and Kashmir from their civil rights if they marry a non-domicile was dropped on Sunday from the Legislative Council after the government admitted a "technical flaw" in introducing the proposed law.
Hours after taking a 'U-turn' by informing the high court that it is withdrawing its notification dissolving all gram panchayats in the state, the Punjab government suspended two senior Indian Administrative Service (IAS) officers on Thursday for a 'technically-flawed' decision.
Congress MLA Sukhpal Singh Khaira was arrested by the Punjab Police in connection with a 2015 drugs case on Thursday morning, official sources said.
Bipin Singh's late strike helped Mumbai City FC win their maiden Indian Super League title with a 2-1 victory over ATK Mohun Bagan in the final, in Margao, on Saturday.
The Supreme Court on Friday snubbed the special committee of the Punjab Assembly for usurping judicial functions in passing certain directions at the time of expelling former Punjab Chief Minister Captain Amrinder Singh and two others in the Amritsar land scandal.
After the Opposition, now Punjab Congress chief Sunil Jakhar and two MLAs of the party have questioned their government's decision of giving jobs to sons of two legislators and urged Chief Minister Amarinder Sigh to roll back the 'ill-advised' move.
Navjot Singh Sidhu on Friday skipped a meeting held by newly-appointed Punjab Congress chief Amrinder Singh Raja Warring with several party leaders from Amritsar.
ATK Mohun Bagan moved to the top of the table and Kerala Blasters FC entered the top-four after the two sides played out an entertaining 2-2 draw in the Indian Super League.
Punjab Minister Anmol Gagan Mann on Wednesday said her Aam Aadmi Party will fight on all 13 parliamentary seats in the state.
Taking note of a plea of an Aam Aadmi Party councillor alleging wrongdoing in the polls, the court issued notices to the Chandigarh authorities, including the civic body.
Mumbai City FC and Kerala Blasters continued their winless streak as they played out a 1-1 draw in an Indian Super League encounter.
Pakistan had released them as a goodwill gesture a The release of prisoners from the Kot Lakhpat Jail in Lahore coincided with Punjab Chief Minister Capt Amrinder Singh's four-day visit to Pakistan.