what should I write on the 2nd blank page of NEET admit card according to NTA info?

Hello,

At the test centre, the admit card is required. If the second page is blank, you do not need to bring it to the test centre or be concerned about it.

Visit the following page for further information about the admission card;

https://www.google.com/amp/s/medicine.careers360.com/articles/neet-admit-card

Items to bring with you to the exam centre:

1. Photograph of passport size (same as on the application form)
2. [PAN card/Driving license/Voter ID/Passport/Aadhaar Card (with photograph)/Ration card or any other government document]
3. Certificate for Persons with Disabilities (if applicable)
4. NEET admission card template with a postcard-sized photograph put on it.
5. Hand gloves, a face mask, a clear water bottle, and hand sanitizer (50ml)

Hope this helps.