ATK now have 33 points as they remained firm in contention for the top-spot.
Chennaiyin FC head coach Owen Coyle hoped for a positive start despite starting their campaign away.
Odisha FC and Mumbai City FC settled for a point each in a fast-paced and gritty 1-1 draw in their Indian Super League (ISL) match in Mumbai on Sunday.
Chennaiyin FC secured a crucial 2-1 victory over Punjab FC in the Indian Super League, with Daniel Chima Chukwu's late strike proving decisive.
Both the teams gave it their all to find the winner but could not do so.
Hosts Odisha FC rolled past East Bengal FC with a 2-1 victory to register their second win of the Indian Super League (ISL) in Bhubaneswar, Odisha on Tuesday.
Odisha FC and Kerala Blasters FC played out a thrilling match, filled with twists and dramatic moments in the Indian Super League in Bhubaneswar on Thursday. Diego Mauricio found the back of the net for Odisha, while Kerala benefitted from an own goal by Alexandre Coeff. Meanwhile, Noah Sadaoui and Jesus Jimenez showcased excellent chemistry, each scoring for Kerala Blasters.
Riding on goals from Nihal Sudeesh and Leon Augustine, Punjab FC beat Odisha FC 2-1 here on Friday to clinch their second successive win in the ongoing Indian Super League season.
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.
AFC Cup tie moved to neutral venue after Australia denies Myanmar club visas
Hyderabad FC maintained their unbeaten run in the Indian Super League
Roy Krishna scored inside five minutes to give the Blues an early advantage but Prasanth Karuthadathkuni scored at the stroke of half-time to restore parity.
Costa nodded home a Javier Hernandez corner at the far post to log home full points for BFC
But they missed a flurry of chances with the striking line-up of Manvir Singh, Ashique Kuruniyan and Liston Colaco showing little coordination upfront, underlining the lack of firepower in the absence of Roy Krishna and David Williams.
ATK Mohun Bagan defeated Kerala Blasters 4-2 in the opening game of the 2021-22 Indian Super League, at the Nehru stadium in Fatorda, Goa, on Friday.
ATK MB's first real opportunity of the game came midway through the first half when Boumous broke free on a counter-attack, shrugged off a challenge from Wangjam and managed to get a shot on target. Gurpreet Singh Sandhu, however, got a strong hand to the strike and parried away.
The Indian Super League giants said they have raised the issue with the 'relevant authorities'.
All eyes were on the 131-year-old club Mohun Bagan as they were making their ISL debut following their 'marriage' with three-time defending champions ATK.
ATK Mohun Bagan started off with a more positive intent and dictated the pace of the game
Roy Krishna powered ATK Mohun Bagan to a 3-1 win over SC East Bengal
Bengaluru FC will head into the second leg of the ISL semifinal with a narrow advantage after registering a 1-0 lead over Mumbai City FC in the first leg in Mumbai.
The result stretches BFC's winless run to six matches.
Bengaluru FC played their hearts out to score an equaliser but looked clueless against an organised ATKMB defence
ATK may have qualified for the play-offs, but the loss came as a big blow to their AFC Champions League qualifying aspirations with FC Goa taking a three-point lead at the top with only a match left for the league stage to conclude.
The win ended BFC's five-match winless run as they jumped from 10th to eighth position, three points behind Chennaiyin FC.
Valskis scored in the 30th and 66th minute while Roy Krishna pulled one back for ATKMB in the 80th minute.
ATKMB dominated the early exchanges and constantly raided the opposition box. However, Odisha did well to close down the spaces and keep things tight at the back.
An unmarked Pritam Kotal got in between the Goa centre-backs and nodded the ball into the net to give them the lead.
Krishna gave early warnings after a Kauko through ball sent him clear but the veteran Fiji striker, back in the starting XI after an injury layoff, found the post in his way.
ATKMB were scheduled to leave for Maldives on Monday but that plan stands cancelled after the AFC's announcement, which did not specify why the games were being postponed.
It was a second successive draw by the Csaba Laszlo-led side as they once again squandered plenty of chances to settle in the seventh place with 10 points from eight matches.
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.
With consecutive wins, Kerala now have 14 points from 12 matches.
ATKMB looked the likelier of the two teams to take the lead in the opening exchanges, with the Mariners needing two goals at least to make a comeback.
The result also meant Khalid Jamil is still unbeaten in the competition and extended NorthEast's winning run to ten games.
The two teams will go up against each other again on Wednesday for the second leg
The Kolkata franchise have nine points from four matches to occupy the top spot, ahead of FC Goa (eight points).
Two-time champions ATK rode on a David Williams brace to script a spectacular turnaround and storm into the final of the Indian Super League with a 3-2 aggregate win over holders Bengaluru FC, in Kolkata, on Sunday.
Roy Krishna had a couple of half-chances thereafter but good reflexes from Mirshad Michu in NorthEast goal and Krishna's inefficiency to keep the ball on target kept the score to 1-0.