Dear Ritesh, most jobs prefer you having a minimum aggregate of 50% in your Graduation either for higher studies or for a job. And there is a leverage for Reserved Categories. Most Govt. Jobs don't recruit you based on your marks in the qualifying degree but conduct an written exam, interview, etc. So your marks or aggregate in B.Sc helps you qualify for the job but the rest depends on how you perform in the written test and Group discussion, Personal interview, etc. So even if you haven't scored distinction, it is still fine as you it is in the written tests and other rounds where you need to score big.