Infoglen Salesforce Developer Trainee interview questions

Company is good .I like this company but other peoples are not good .I am very diappointed with this company. I have cleared 2 technical round and Hr round also after that they are saying you have to give one more technical round .I have given 80% of answer in 3rd round but also they are rejecting me .dont know why ? this interview has taken 1month of period .