Hello Aspirant

Yes, you can easily get a medical seat in Kolkata under aiq and a score of 519 marks, sc category and 38000 rank, if last year's cutoff is kept in mind.

You can go through last year's year cutoff to get a better idea about your chances under sc category and aiq in Kolkata with the help of link mentioned below-

 https://medicine.careers360.com/articles/neet-cutoff-west-bengal

I hope this information proves helpful to you.

All The Best