Virat Kohli blew up believing Australia were rorting the Decision Review System in Bangalore with Clarke admitting he wants to find out more about the allegations.

"I want to find out from the Australian team if they're using the DRS in that way, if they are then that is unacceptable," Clarke told TV station India Today.

"My concern and my worry is that when you look at the footage of what happened with Steve Smith, Peter Handscomb ... actually suggests to Steve Smith to turn around and have a look at the support staff.

"If it is only a one-off, I don't think that would have happened.

"The fact that Peter Handscomb is even thinking about telling the Australian captain to turn around and look to the support staff, I've got my concerns."

Smith apologised for looking up to the dressing rooms for assistance with the DRS, calling it a "brain fade".

"It’s the first time it’s happened,” Smith said.

Handscomb later admitted to the error on social media.

Former India captain Sourav Ganguly declared "action must be taken".

"If the umpires themselves saw Smith infringing on DRS rules then they must report and take action. The umpires and match referee must ensure this doesn't happen in future," Ganguly told Aaj Tak.