Sir, I have completed Simple graduation (B.A) and i have not studied math in 10+2 level..Am I eligible to do MCA ?

if you have no maths at 12th level then there is need to have maths in graduation or BCA degree for take admission in MCA , without maths you can not take admissionin MCA but you can try in distance program of MCA

Yes. you can go with MCA in ignou where eligibility is any graduate from a recognised university. However, the students who have not pursued Mathematics as a distinct subject at 10+2 are required to pursue and pass the CS-60 course concurrently.