Dear Manasa,

According to 450 marks , the predicted is 43,676-45,676. This is sccording to general category, Since you have not mentioned any category. And this is All India Rank. Every year rank and cutoff changes according no. of applicants applied for the exam, difficulty level of exam, no. of seats also vary each year because of termination and addition of new colleges and more reservations etc. There are various factors behind a rank. Rank also varies state wise. 

Best of Luck!

Check out the following website for more information,

https://medicine.careers360.com/percentile-predictor-result/1199?s=30365641391558069579