First of all you should know that rank doesn't only depends upon your mask but on various factors like, number of applicants fill the form, number of applicants finally appeared in the exam, number of questions asked in the exam, difficulty level of the exam, performance of the candidate, previous year's cut offs trends availability of seats in the institution so before the announcement of results we can't be certain about your rank but you may calculate your rank with the help of upsee rank predictor you just need to enter your 12th percentage and total marks and you're good to go. 

https://engineering.careers360.com/upsee-rank-predictor