Hi there,

Hope you are doing fine.

Yes, you can certainly give the nios exam while studying pcb in the class 12th cbse.

The eligibility criteria for the student appearing in the jee examination is that you have to pursue mathematics in the class 12 and pass the respective examination with a minimum percentage.

However, you can still appear for the jee mains exam by passing the nios exam and qualifying it. You are eligible by passing it with a good score and then appear for the jee mains examination.

also, you can check the more details and the criteria to be eligible for the jee mains examination by visiting the official website of the examination and then reading the brochures related to it.

Hope this resolves your query.