First round was pretty good.In the second round,I went to their office as it was face to face round there was team of 3 and they were asking questions and literally they were writing in the laptop and were smiling like they are just finding something funny. I have given lot of interview and working in reputed MNC but I never got this kind of behaviour. It was pathetic.one women was there in the pannel even she didn't have knowledge what to ask and was giving weird expressions

The interview is highly technical. You need to learn the things from basics and should have clarity as to why you are using this tech. You will have two rounds of technical interview followed by HR.