With a Class 12 board score of 86% in 2024, your son meets the board-based eligibility for B.Tech CSE at Thapar University—but there’s one important detail. Thapar conducts admissions via two modes: one uses JEE Main scores (50% seats) and the other uses Class 12 PCM marks (50% seats). However, for top branches like CSE, only JEE-qualified candidates are considered.

Admissions through Class 12 marks only apply to other branches—not CSE—since board-based seats in CSE are typically not offered anymore for 2025 onwards.