Dear Gaurav,

NEET exam will be held twice a year in 2019. National Testing Agency (NTA) is the conducting body of NEET 2019. NTA will be conducting NEET 2019 twice a year in the month of February and May. NEET 2019 aspirants will be able to appear in one or both the exams though it is not compulsory to appear in both. For detailed information about NEET 2019 exam refer to the link-

 https://medicine.careers360.com/articles/neet

Good Luck!