A 2-year gap after Class 12 generally does not create a major problem during placements, whether in core or non-core sectors, as long as you are able to justify the gap with a valid and genuine reason. Many students take a gap due to medical issues, financial challenges, preparation for
If you are interested in Development Studies and planning to appear for GATE XH C6 (Sociology), then you are already moving in the right direction. Having a backlog does not disqualify you from pursuing higher studies, as long as you clear it before the admission process begins. Since you mentioned
