I scored 49.17% in graduation. Am I eligible to pursue MBA?

Yes, even though you belong to general category, I believe there are colleges from where you can pursue your MBA.

Yes, there is criteria of minimum 50% marks in graduation to peruse an MBA program, but if you belong to a category student, 45% marks is the criteria.

One can definitely pursue PGDM. It is equivalent to MBA, but even that requires 50% marks in graduation criteria, but there are few Colleges who still accept research on that.

The eligibility criteria for MBA is 50% in graduation but you can apply for PGDM.