Hello aspirant.

You mentioned that you secured with a rank of 20656 in AP EAMCET 2020 as a BC-E candidate. No, you're not eligible to get a free seat in D. Pharm course. Since you've mentioned clearly your category, so maybe you can't be able to get a seat in the government college offering D. Pharm. See, it will be pretty difficult to get a seat in the government colleges but there are private institutes where you can get your admission in the course of your choice. Thing is this, the ranking is based according to the category wise and area wise. And, according to that, you will be allotted. Anyways, I'm providing you the link where you can assume your chances of getting a seat in the college-

www.careers360.com/ap-eamcet-college-predictor

Hope, it helps you. Better luck next time!