There were 2 technical rounds where in the first round they covered mostly basics of java by giving you some scenario based questions. second round was also technical related to spring boot microservices

I got the interview call from IRIS HR. So in total they took 2 technical and 1 manager round each of 30 mins in a soan of a week. After that HR did not provide any feedback. On multiple calls, she finally reverted saying client has changed the requirement so cannot proceed with your profile. In short they have successfully wasted my time and efforts in this entire process. And this is not with me but many others have reviewed same on google reviews of Iris. Please refer that as well. (God knows how they claim to be CMMIL 5 company) I would suggest not to waste your time with this screwed recruitment process of Iris unless you are an immediate joiner.