Hello Mahima,  No,  you can not directly appear for B. Ed right after 12 th.  To appear in B. Ed you have to complete graduation in any stream. And minimum score in graduation is more than 50 percent. So first of all you have to complete your graduation and then you can apply. 

I hope it will help you more. 

Thanks. 

Dear aspirant!  Meant for preparing teachers for secondary schools, this two year (earlier one year) training course is open to graduates, with an emphasis on the principles and methodology of teaching.The minimum qualification required for entry into B.Ed. course is a Bachelor degree