Hey !

All the entrance exams for engineering ask for a 10+2 passed or equivalent degree with Physics , maths , chemistry/biology/biotechnology as main subjects.

So , if you haven't passed 10+2 with science , you can not apply for engineering entrance exams like IIT.

Since different entramce exams have different eligibiluty criteria , i request you to mention the name of concerned entrance exam in comments.

May be the entrance exam you want to ask about , doesn't need 10+2 with science.

Best wishes!