As you said that you completed your 12th without Maths, then also buddy you are eligible for applying in MCA course at any of the colleges. Just you have to do is after 12th you have to take admission in any college for the BCA (Bachelor of Computer) course. It is possible for any stream student to apply for BCA course. After completion of BCA you can join for MCA. There is no separate Entrance Examination for BCA Course .

MCA stands for Master of Computer Application and duration of the Course is three years and the Course is divided into four six semester .

Most of the College may give First preference to BCA Course candidates .

Every top institution may conduct own Entrance Examination within the College Based on the Performance in Entrance Examination they give admission for MCA Course .

So, You have to crack MCA Entrance Examination with good percentage of marks .
For your benefit I am mentioning the clear eligibility for joining in MCA course.

Eligibility for MCA:
1. For MCA you must complete BBA, BCA, B.Tech or any science or computer graduation courses
2. There is no age limit for MCA
3 You must appear for a common entrance exam for MCA
4. You must have minimum 60% marks in graduation for MCA

These are Best MCA Colleges/ Universities in India :-

Vellore Institute of Technology
Aligarh Muslim University
Andhra University
Banaras Hindu University
Hyderabad University
Mumbai University
Pune University
Sikkim Manipal University
Birla Institute of Technology
Delhi University