You need a bachelor's degree of at least 3 years in any discipline from a recognised university.
Your overall graduation score should be minimum 60% (for general category). For SC/ST candidates it's 55%.
You must have studied Mathematics either in 10+2 or during graduation.
Final admission is usually based on merit of 10th + 12th + graduation marks, but the basic minimum is graduation with 60%.
So in short: 60% in graduation + maths studied earlier is the key eligibility.
