Hii Sudesna,

Hope you're doing great. All the best for your upcoming future.

If you get 450 in NEET exam, your overall percentile is almost 93.39 to 93.89 and your predicted rank is almost 89930 to 107080.

Also, you can check your predicted rank and percentile through this link-

In 450 marks, you can also apply for counseling in West Bengal medical colleges.

You can check the predicted colleges though this link-

https://medicine.careers360.com/neet-college-predictor

Hope this helps!!!