Hey there

Yes students from nios etc. Can also participate in neet exam. Open school students have an edge that they have plenty of time which they can utilise for neet preparation but they have more chances of getting distracted.

Check about open school criteria in neet

https://www.google.com/url?sa=t&source=web&rct=j&url=https://medicine.careers360.com/articles/neet-2018-what-nios-students-and-private-candidates-should-know/amp&ved=2ahUKEwiknr3DxK_jAhXbXCsKHZcEB4UQFjAAegQIBxAC&usg=AOvVaw2B_MYWH0Y2jfBeaXQikhb1&ampcf=1

Good luck

Hello dear student
Greetings
Yes , you are eligible.
Even open school candidates are eligible to appear for NEET entrance exam. National Institute of Open Schooling (NIOS) is recognized at par with other prominent educational boards in India. But yes to be eligible for Neet you  should clear Class 12  with atleast 50% aggregate marks in Biology, Physics and Chemistry.
Good luck
Thankyou

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