1st technical round All manual testing question and SQL query, API using postman Question are easy and i had given all ans but still i have received negative response from HR Side

I had appeared in an interview in CresTech Software in August 2017.There was 3 round 1-Written Test 2-GD 3-Personal Interview Written test included aptitude,logical reasoning and verbal ability it was easy,and then shortlisted candidate called for next round i.e GD we had given a normal topic Love Marriage vs Arrange Marriage and then we represents our ideas one by one it was also an easy round,then shortlisted candidate called for personal interview.