Synechron Software Associate Developer interview questions

First round was OA which has MCQ on DBMS and some essay writing or PR questions and after that Coding Test in office on hackerrank(java) which has 2 questions medium to hard and then GD round of shortlisted from coding assessment. I cleared coding round also most of them where using mobiles phone to cheat in synechron office itself despite of cctv's and although the HR's and invigilator know about this but they don't really pay attention. But I failed to clear the GD round ,I even don't know how and how they can allow cheating,95% candidates where cheating but it's their call