Hello Md. Sami,

You need a minimum of 50% (in 10+2 exams)to sit in the AMU entrance exams. Since the merit list determined by a lot of factors that change every year, I cannot tell you if you can get admission with 38.5 marks. But depending on previous years trends, I'm afraid it is difficult for you to get admission with your marks.  You can find further details regarding AMU cut off here  :   https://www.google.com/amp/s/university.careers360.com/articles/amu-cutoff/amp

Hope this helps.