Hi,

You can complete your class 12 from NIOS board. NIOS is a National Institute of Open Schooling. The examination is conducted twice in a year. The eligibility for NIOS board is:

• Candidates must have completed their secondary/ class 10 examination.
• Candidates must have completed their 15 years of age to appear for the NIOS board.
• The candidates must get a pass certificate from secondary classes from a recognised board.

You can complete your class 12 via NIOS.

You can check the complete information over here: https://school.careers360.com/exams/nios-class-12