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To secure a government seat in Biotechnology in Odisha after your 12th with PCB in 2025, you should:

1.Appear for OJEE 2025: Register and take the Odisha Joint Entrance Examination (OJEE) 2025, as it's the primary entrance exam for various undergraduate programs in the state.

2. Consider JEE Main 2025: Participate in JEE Main 2025, since some institutions, like NIT Rourkela, offer B.Tech in Biotechnology and admit students based on JEE Main scores.

3. Check Eligibility for Other Exams: Explore other entrance exams such as CUET, which might offer opportunities for Biotechnology courses based on your PCB background. (https://www.collegedekho.com/articles/cuet-courses-for-pcb-students/?utm_source=chatgpt.com)

Ensure you meet the eligibility criteria for each exam and stay updated with their respecive application deadlines.

To get a government B.Sc. Biotechnology seat in Odisha after 12th (PCB) in 2025:

1. Apply via SAMS Odisha for colleges like B.J.B. Autonomous College.

2. Take the OUAT Entrance Exam for Odisha University of Agriculture & Technology (OUAT).

3. Check individual university criteria – some admit based on 12th marks, others via entrance tests.