Cognizant Automation Testing Engineer interview questions

Their is 3 rounds in which there is 2 technical round in which 1 with client and 1 is managerial round after that HR discussion is there after that we will get the final results

It lasted for 20 minutes. They asked me to explain about my project done. Questions were asked on my core subjects(about 4 questions) followed by Aptitude(3 questions) were asked. One programming question(prime number) was asked.