Hii!
Frankly speaking, 65% is quite low to get admissions into a course like B.A Economics if the admissions into the College are provided based on the merit obtained in class 12th.
But, it is possible to get admission.
It also depends, whether you are a native resident of Maharashtra, you belong to any reserved category, the number of students applying to the course etc.,
In case, the College you are interested in, provides admission on the basis of scores secured in entrance exam, conducted by the College, you can get admission easily if you score well in it.
Hope you understand.
Good luck!