IIM Udaipur panelists accept gap years if justified genuinely - even 3-year gaps for UPSC or similar prep don't kill conversion chances. The OP confirmed - "HR questions, undergrad and internships if any. 1 year gap won't create issues if you're able to justify it well" and for UPSC 3-year gaps - they want honest framing plus willingness to discuss politics-related topics without full depth. Acceptable gap year narratives: