lol..i'm pretty sure this is all just a misinterpretation and can very likely be zee's editing.
also, sureshji usually claps like that anyways, to encourage the kids, and sometimes gives bad comments after that too (even before sonuji gives his comments). i remember it happening before that sureshji clapped like that and then was asked first and gave bad comments. since then i have started to believe that all of these small scenes are taken from somewhere and shown somewhere else. i remember once in another program someone had pointed out a scene where they were showing the judges giving comments to one contestant who was on stage and then when they showed the rest of the contestants listening to the comments the same contestant was sitting amongst them.😆 and another time last season they had very intelligently showed HR being present in the studio when he actually wasn't there.