DearAspirant

No you cannot apply for neet twice in a year

National Testing Agency (NTA) will not conduct the NEET-UG 2021 twice a year. The NEET aspirants were expecting that the exam will be conducted twice a year, in view of the Coronavirus pandemic, on lines of multiple attempts for JEE Main.

If you want to know more about it check out the link given in below

https://www.google.com/amp/s/medicine.careers360.com/exams/neet/amp

Thank you