It was a great experience for interview and hardly will be took 2,3 rounds of interview. First one is a assessment if you clear first round then will go for the next Technical round and mostly second round interview will take from HOD Here you have to prepare all the relevant skills, knowledge and if you are experienced that will be good to crack second round. And last third round which easy to clear when you're a confident & clarity about roles and responsibilities along with the practical knowledge and expertise of particular domain. Mostly third round would be taken from CEO of the company.