Hello,
Since the lowest marks to get the entry in the BTech sorry B.Ed is 50% if you belong to the general category and if you belong to the Schedule category then its 45 percent so the thing is like that you have got the 48% I don't think so you will get the admission it may be quite difficult process to get the admission in the bed so all the best.
thank you

The minimum eligibility requirement for required for getting  into B.Ed. course is a degree in either Bachelor of Arts(B.A),or Bachelor of Science(B.Sc.) or maybe Bachelor of Commerce(B.Com.) form Any recognised board or university with a minimum of 50% marks in graduation.
So you aren't eligible for B.ed.