I have got 51% in 12th, does this affect in my placements??
But chances are rare for such conpanies.
Try to maintain more than 8/10 CGPA or 75%and abive to get good companies.
Placements also cinsider your technical expertise and certification knowledge irrespective of your academic background scores.
Placements alos require good deal of communication skills and internships experience which is must.
Hope this makes sense.