1. when will the application form will be open for B.A. In st. xavier's Kolkata?

Hii, Me, Manashi Mandal, a student of WB board and passed XII board in 2020. I obtained 478/500. But unfortunately 75/100 in math (though I am enough good in maths generally). Do they consider any best four subjects for admission or math is necessary? Is it impossible for me to get admission there?