The fresh development is another blow to East Bengal's preparation for ISL as they will have to clear the due for the ban to be lifted.
Sarkar had been asked to appear for questioning on Wednesday at the CGO Complex office of the ED, sources said on Tuesday.
Odisha FC prevailed over SC East Bengal 6-5 in a crazy 11-goal thriller as the ISL recorded the most goals in a match through teams whose season was blighted by their inability to score.
While Odisha lie at the very bottom of the table, East Bengal haven't fared much better and are ninth.
With NorthEast in more need of a win, they got off the blocks quickly as Suhair scored the first goal of the contest in the 48th minute.
As the race for the top four goes down to the wire, NorthEast are placed fifth on the league table and are breathing down the necks of Hyderabad FC and FC Goa above them.
Amid torrential rain, it was an emphatic performance that showed the gulf in class between the two teams in this season of the ISL.
It seemed Bright Enobakhare's second half solo goal would be enough for the Kolkata giants to pick up three points but Aridane Santana grabbed the equaliser deep into added time.
The win means the Kolkata giants climbed up a spot to ninth with 16 points from as many games.
The Liverpool legend was on Wednesday found guilty of making defamatory and insulting remarks against Indian referees and was charged under Article 59.1 of AIFF disciplinary code.
East Bengal were no meltdowns for the Blues like the previous game against Hyderabad FC where they squandered a 2-0 lead to draw 2-2.
Video footage of Robbie Fowler making the remark could not be assessed as it has been deleted from all platforms.
East Bengal look better positioned in that regard as they are looking like a more organised team after a tough start to life in the ISL.
Robbie Fowler's Kolkata giants remain one spot from bottom, with 13 points from 14 games.
It might be the perfect opportunity for loan recruit and India international Adil Khan to start for his new club. The defender arrived from Hyderabad FC having not started a single time this season.