Hello,
You can still do BCA if you had physics,Chemistry and  biology subjects in your 12th.You can apply for BCA Course in colleges like Christ University,KIIT,BIT MESRA,VIT UNIVERSITY,LPU...and many more.You just need to visit their websites for more information.These colleges has very high placement records for BCA course.But i suggest you to complete  MCA course also to get better job opportunities.You will get more package then.
Good luck.