I had a worst interview experience ever in my life...

I had a worst interview experience ever in my life on 21-Sep-2019 with Sasken Technologies Limited. The worst thing is even after having 5+ years of experience in DevOps they asked me very basic questions and i answered them all very well and then finally they reject me. They didn't even give me a detail feedback about my interview for which i have waited around 2-3 hours to give. I felt like it was just for time pass nothing to do with their requirement.