Dhoni admitted to the Level 2 offence under Article 2.20 of the IPL's Code of Conduct and accepted the sanction. Article 2.20 deals with "conduct that is contrary to the spirit of the game" and "is intended to cover all types of conduct that is contrary to the spirit of the game and which is not specifically and adequately covered by the specific offences set out elsewhere" in the IPL's Code of Conduct.
Article 2.20 also states that "when assessing the seriousness of the offence, the context of the particular situation, and whether it was deliberate, reckless, negligent, avoidable and/or accidental, shall be considered. Further, the person lodging the Report shall determine where on the range of severity the conduct lays (with the range of severity starting at conduct of a minor nature (and hence a Level 1 Offence) up to conduct of an extremely serious nature (and hence a Level 4 Offence))."
The minimum sanction for the first Level 1 Offence is "warning/ reprimand and/ or the imposition of a fine of up to 50% of the applicable Match Fee", while that for a Level 4 Offence is "the imposition of a suspension of between eight (8) matches and a lifetime".
The Level 2 Offence, under which Dhoni was sanctioned, calls for "the imposition of a fine of between 50-100% of applicable Match Fee and/or a suspension of up to two (2) matches".
In the last over of Super Kings' chase, Dhoni had walked onto the field of play to remonstrate with the umpires over a contentious no-ball call. Super Kings had begun the over needing 18 to win, and Dhoni was bowled by a Ben Stokes yorker off the third ball of the over. With eight needed off the last three balls and new man Mitchell Santner on strike, Stokes bowled a full toss. Umpire Ulhas Gandhe first signalled a no-ball for height, only for his square-leg colleague Bruce Oxenford to overrule him.
That led to heated arguments in the middle, with batsmen Ravindra Jadeja and Santner getting involved. Dhoni also marched onto the field and got involved in an animated discussion with the umpires for a few minutes.
The delivery ultimately stood as a legal one, but Super Kings clinched a thrilling win, with Santner hitting a six off the last ball.