Yes, even if you're from the PCB stream, you can appear for CUET next year and choose arts subjects like Political Science, History, or any other relevant domain subjects for BA Political Science at DU. CUET allows you to pick subjects based on the course you're applying for, not strictly your Class 12 stream. So, as long as you meet the eligibility criteria set by DU (usually just passing 12th with any stream), you’re good to go. Just make sure to prepare well for the arts subjects .ALL THE BEST