Hi, according to the previous year data for getting a seat in Institute of post graduate medical education and research, Kolkata you need to get all india rank around 15000 and a score about 518 but the ranking system changes every year it depends on various parameters so it can be said you may get a seat in ipgmer, Kolkata. For cutoff ranks of other colleges in Kolkata refer to the link

https://www.google.com/amp/s/medicine.careers360.com/articles/neet-cutoff-west-bengal/amp