hey varsha 

with 400 score in neet belonging to obc category you might not get admission in karnataka under all india quota. as per previous year the minimum cut off of karnataka for obc under all india quota was 541 marks. you are expecting great score you might get medical college in some other nearby state. ypu can predict college on the basis of your neet score by visiting following link https://medicine.careers360.com/neet-college-predictor?icn=neet_clgpd_landing_page&ici=clevertap-sticky-web