Profile assessment for university application

Hi I'm a 12th grade Indian student with Physics, chemistry and maths. I want to do BSC physics in Ecole polytechnique paris. I don't have any extra curricular (and I mean it). I have good grades like very good with strong maths and physics. I'm preparing for JEE (indian entrance exam for engineering and stem fields). BUT there is one thing I have done which is notable and that is I'm a winner of BL4S 2026 and I went to cern to perform my proposed experiment and stayed there for 2 weeks.

Based on this how likely am i to get in Ecole polytechnique, paris for bsc physics program.