VASPP SQL Developer interview questions

The role was SQL developer fresher. They've conducted 3 rounds of interviews; telephonic interview followed by technical round and group discussion round. It seemed like everything went good after completion of 3 rounds of interview, but the question is that why the honest feedback is not provided after the rejection of candidature even after clearing first 2 rounds. Honest feedback must be provided for the candidates for their future references instead they haven't shared the clear feedback for the rejection of the candidature.