NIOS Additional Subject - Mathematics:

• Absolutely! You can pursue NIOS Senior Secondary Mathematics as an additional subject. NIOS offers flexibility for students seeking specific qualifications.

VIT Vellore - B.Tech Cybersecurity (Management Quota):

• Mathematics Requirement: For B.Tech Cybersecurity at VIT Vellore, Mathematics is a mandatory subject in Class 12th. NIOS Mathematics could potentially fulfill this requirement, but confirmation is needed.
• Management Quota: VIT doesn't explicitly state on their website if NIOS qualifications are accepted through the Management Quota.

Steps to Take:

1. Contact VIT Vellore Admissions: Directly reach out to the VIT Vellore admissions office. Explain your situation - studying BIPC, wanting to switch to B.Tech Cybersecurity, and pursuing NIOS Mathematics. Inquire if NIOS Mathematics is accepted as a valid qualification for Mathematics in the Management Quota.
2. NIOS Registration: Regardless of VIT's response, registering for NIOS Mathematics is a good step. It demonstrates initiative and strengthens your profile. You can find information and registration details on the NIOS website.
3. Explore Other Options: If VIT doesn't accept NIOS Mathematics, consider these options:
   • Regularize your 12th: If possible, explore regularizing your 12th with Mathematics as a subject in your state board (AP Board).
   • Other Universities: Research other universities offering B.Tech Cybersecurity that might accept NIOS Mathematics or alternative qualifications.

Additional Considerations:

• Management Quota: Remember, Management Quota admissions are competitive and involve additional fees.
• Entrance Exam: While Management Quota might bypass the main entrance exam (VITEEE) for some seats, some universities might have a separate test for Management Quota candidates.I hope this helps! It's best to be proactive and gather all the information before finalizing your decisions.
  
  I hope this helps you.