Hii Adarsh 

VIT is one of the India's top most private university having A grade accreditation from NAAC and MHRD. Every year VIT conduct the national level entrance examination (VITEE) for intake of undergraduate students in it's 4 campuses. Each year atmost 2 lakh students will arrive for the exam, among them only few will able to get their seat in desired branch. If you are expecting your rank in between 20000 then you are in the safe zone to intake any branch of VIT at any campus.....Cheers !!!!

Good luck