Two rounds of telephonic interviews, two rounds of face to face interviews

I had 3 telephonic interviews which were mainly technical and a little part HR. As you clear the the telephonic interviews you are called for one to one interview. I had to give Three rounds of one to one interview which were again mainly technical. The questions revolved mainly around my projects and basic knowledge. The interviewer were very polite and if you don't know the answer to any question its better to tell them so, no need of beating around the bush. And then lastly there was an HR interview which was again telephonic.