can i get admission in nims dental college rajasthan with 400 marks in neet?

Nidhi, you haven't mentioned your Category. Nevertheless, in 2019, under State Quota, the cut offs for NIMS College for BDS under various Categories have been as follows:

General Category: 322

SC; 127

ST:126

OBC: 129

Now this is 2019 data and cut offs change every year. Cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam. For a seat in this College 400-425 is an ideal score if you belong to General Category and 400 is good enough if you belong to Reserved Categories. The Supreme Court has dismissed all the PILs requesting for Cancellation of NEET and JEE Mains citing Studen'ts future. So NEET will happen as scheduled on September 13th with adequate measures taken. And if you are preparing for NEET, you may as well try our NEET Knockout package: https://learn.careers360.com/knockout-neet-may/ . And because you have 27 more days to prepare for NEET, you may as well use this opportunity. Meanwhile, there are many fake online petitions going on asking you to fill up google forms to postpone the exam. Do not fall prey to it. It is the Government that has to take a call and these forms dont reach the Government. Instead you will be giving out confidential information. So be careful.