To predict your Category rank, we will need details like the no.of Candidates who appeared for JEE Mains under EWS Category. But to give you an approximate rank, it might be around 3,000-5,000. However this is just an approximate number. With an All India Rank of 10300, you might have chances in:

IIIT Allahabad

DTU

NIT Delhi

NSIT

Now this is based on 2019 data and cut offs change every year. Cut offs depend on various factors such as total no .of seats available, difficulty of the exam, previous year cut offs, no.of Candidates appearing for the exam and no.of Candidates applying for a course. Please use our College predictor for the complete list of Colleges that you may have a shot at: https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer