Dear aspirant

JU is only college in wbjee counselling in which B.Pharm admission is taken on the basis of GMR ( General Merit  rank ) . In all the other colleges ( Guru Nanak Institute of Pharmaceutical science and technology , jalpaiguri government engineering college,  Adamas University , Brainware University , Techno India )  pharmacy undergraduate admission is done on the basis of PMR ( Pharmacy Merit Rank ) . So if your target is JU then you must have good GMR rank but if any other college then Mathematics marks in WBJEE will not be of any concern of yours. You only have to focus only on the pmr rank.

Anyway best wishes.