Hi

It's completely legal dear.

This is because,

It's not like you have given two regular board examination in the same year if that was the case then this would have been illegal but this isn't the case with you as you have passed 12th from state board in 2020 and cbse board in 2022 i. e different years so it's completely legal.

For filling neet application form,

You can use either of state/cbse board results. Choose the one with which you meet pcb percentage requirements for neet

For your reference,

Here's the eligibility criteria for NEET :-

-------------------) Qualification required :-As per Neet eligibility to be eligible one must be either appearing for 12th board examination  or should have passed 12th board examination from any recognised board with physics, chemistry ,biology/biotechnology and English as core subject.

†††Important Note :- Students with Biology as an additional subject are also provisionally eligible for neet until Supreme Court gives its judgement over it.

-------------------) Percentage required :- You must get

• at least 50 % in aggregate of PCB i.e Physics, Chemistry and Biology/Biotechnology in 12th examination if belongs to general category

• at least 40% in aggregate of PCB if belongs to st/Obc/ Sc

• at least 45 % in aggregate of PCB in case of pwd candidates to be eligible.

-------------------)  Age limit :-

• Lower age limit:- to be eligible for neet  one has to be at least 17 years old or more by 31st December in the year of appearing for the examination .

• Upper age limit :-There's no upper age limit for NEET. Earlier there was upper age limit  of 25 years which was pending in supreme court, on 9th march 2022 NMC in its notice has removed upper age limit. For details about it checkout :- https://medicine.careers360.com/articles/neet-number-of-attempts-and-age-limit

--------------------) There's no attempt limit for neet.

For detailed information about neet examination eligibility go through our page for which link is provided below; -

https://medicine.careers360.com/articles/neet-eligibility-criteria

Regards

ADITYA KUMAR