Dear Aspirant,

It seems you wish to know about St, Xavier's College, Mumbai which has Arts and Science stream

So for admission for 11 you have to apply online on government of Maharashtra portal for FYJC admission

They have entrance exam for BMS and BMM courses which you can do after 12th.

Please visit Xavier's official website for more information

http://xaviers.edu/main/index.php/junior-college

Hope this helps