SigmaTec Solutions interview questions

They call me telling this is your final interview with the management but they took technical interview and caught me empty handed. and reject me. that's totally unfair. if I knew there is going to be technical interview I may have polish some of theories.

First applied for the available posts on the company website www.sigmatec.com.pk, then was called for the initial test. After some days initial test was taken. After success in initial test, on the same day a interview with HR Manager and the Managment and at last a technical interview was taken. After success in all these steps a final selection call was made to m.