Cognizant Associate Senior Associate interview questions

Recruiter contacted me and scheduled technical interview. Interview for a position in Charlotte was good but at the end of interview, interviewer told me that I don't fit in their technical requirement. Recruiter arranged second interview for me. This was again phone, and I successfully answered all technical and functional questions

First the HR called up and spoke to me about which company he is recruiting for, the Job Description and then we negotiated the salary package. Later he said the technical team would call me up to set a date for the tech interview. A couple of days later the Tech team called up and set up a date for the tech interview. On the day of interview, they did tech interview for about 1 hour after which they said they would notify the HR. 2 days later the HR notified that I was selected and then sent the offer letter.