You can complete your 12th grade with PCB while pursuing your BA (Hons) in Political Science through the National Institute of Open Schooling (NIOS). Here are some key points:

- Direct Admission: You can enroll in the NIOS 12th-grade program without completing 11th grade. NIOS allows students to take the 12th exam directly after passing the 10th grade.

-11th Marksheets: NIOS will not provide a separate marksheet for 11th grade if you directly enroll in 12th. You will receive marksheets for the subjects you complete in 12th grade only.

- Flexibility: NIOS offers the flexibility to study at your own pace and schedule, which is beneficial while pursuing your graduation

- Eligibility: You must be at least 15 years old and have completed your 10th grade from a recognized board to apply for NIOS 12th admission

- Examination: NIOS conducts examinations for both theory and practical subjects, and you will need to complete the necessary coursework to be eligible for the exams

This pathway allows you to prepare for NEET while completing your 12th-grade education.