Hello, the students who missed the NEET 2019 will have to appear for the second of the exam which will be held in Bengaluru, Karnataka. The students should carry their old admit card and the train ticket as an evidence of why they missed the first round of NEET. 

For more details please visit the link below

 https://www.google.com/amp/s/www.thehindu.com/news/national/karnataka/second-round-of-neet-in-bengaluru-on-may-20/article27179881.ece/amp/

Good luck!