Faf du Plessis is puzzled about International Cricket Council's inaction on the conduct of Virat Kohli and Steve Smith in the Bangalore Test last week.
Kohli's aggression reached tipping point after Smith sought an Australian dressing-room signal on whether he should opt for a review after being given out leg-before.
Kohli yelled an objection to umpires Nigel Llong and Richard Illingworth with almost comical menace.
Kohli stopped just short of accusing Smith, who admitted wrongdoing, of cheating.
ICC chief executive David Richardson, who charged South Africa's captain with ball-tampering during the Australia tour in November, said it was "a magnificent game of Test cricket" and "emotions were running high".
A "surprised" Du Plessis said he thought that the way the ICC treated Kohli and Smith was not consistent with the way it treated him.
"I felt that I was treated very harshly, and when you see something like that you hope that it would be exactly the same," he said.
- TMG Digital
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