khumbu Java Developer interview questions

there were 3 round of interview the process took 15days at first they called me for interview and the first round was written test in this process there were 20 questions (aptitude, reasoning,c,c++)then after 2 days they called and said your profile is shortlisted for further round and on 17/09/2018 I went for the technical round and the questions were easy and after two days they called for hr round and the questions were as usual to tell me about urself, your future goal etc. The interview process was too slow and they took so much time to conclude its totally waste of time...and after all three phase I didn't get any call then I called them after 5 days to know about my result then they said my profile is overqualified for this position I really disappointed with their reason they gave me.