Hi Avinash

Hope you are asking about NIOS 10 th registration. For that you have to go to the official website and then register.Fill all your personal details application form will appear fill the essential details.You can register in the official website sdmis.nios.ac.in.After the application the authorities will verify the documents and then admission.Detailed information is given below

https://www.google.com/amp/s/school.careers360.com/articles/nios-admission/amp

https://www.google.com/amp/s/school.careers360.com/articles/nios-10th-registration/amp