Hello candidate.Congratulations on your result.As you mentioned that your rank is 8639 under OC category it is a bit difficult to get CSE in VR Siddhartha.As per last year cutoff ranks your rank is high to get admission in VR Siddhartha college.There might be a chance to getting admission if you go with 2nd or 3rd counseling For more details visit the official website of VR Siddhartha Engineering college.