Dear aspirant !!
Hope you are doing well !
You can easily fill the form by going on their site . You didn't mention the exam name it can be nvs ,kvs etc .
Assuming nvs exam ,you can visit for information regarding it in detail on link ;-
https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://school.careers360.com/articles/jnvst-class-9-admission&ved=2ahUKEwiAgaTd0uKEAxWMr1YBHcZgC1oQFnoECB8QAQ&usg=AOvVaw3uJfbds7ku5fhDvMviZnCD .
Thank you
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