De Kock and Tamim were involved in a shoulder-barging incident at the stroke of lunch on Wednesday after an altercation and the 22-year-old South African later pleaded guilty to the charge.
“As the over before lunch came to an end, Quinton de Kock walked in front of the stumps to confront Tamim Iqbal,” match referee Chris Broad said in a statement.
“In doing so de Kock deliberately brushed Tamim Iqbal’s shoulder and rib area. This resulted in a heated exchange between the two, initiated by the contact made by de Kock.
“This type of incident has no place on a cricket field.”