It was alleged that Khan had walked onto the ground, after Mumbai Indians (MI) beat KKR, and abused the officials.
Khan was banned for five years, but it was revoked in 2015.
Sreesanth, Ajit Chandila and Ankeet Chavan involved in spot-fixing
In what is considered to be the worst controversy to date in the IPL, three Indian cricketers of Rajasthan Royals (RR), Sreesanth, Ajit Chandila and Ankeet Chavan, were alleged to be involved in spot-fixing during IPL in 2013.
Following the allegations, there were investigations as the three were found guilty of this heinous crime.
The trio was handed life ban by the BCCI.
CSK and RR suspended for two years
The biggest controversy involves two of the successful IPL teams, Chennai Super Kings (CSK) and RR, as they were suspended by the BCCI in 2015.
It was done after it was revealed that the officials of the franchises were involved in corruption.
The franchises were barred from participating in 2016 and 2017.
Both made a comeback in 2018 as CSK won their third title.