Hello Aspirant

Unfortunately, it's highly unlikely that you can pursue Botany without having studied Biology in your 12th standard.

Biology forms the foundation for Botany. It provides the essential knowledge of living organisms, their structure, functions, and interactions, which are crucial for understanding botany. Most universities and institutions require Biology as a mandatory subject for admission to Botany courses, whether regular or correspondence.

You can either enroll yourself in 11th grade all over again and choose Biology as your main subject (Physics, Chemistry, and Biology).

Some institutions might offer bridging courses or preparatory programs for students without Biology to equip them with the necessary foundational knowledge.

These are the only viable options I can suggest.

Many region and state boards allow students to retake individual subjects or repeat a full academic year if needed.you should take help of your school explain them your problem regarding this they will provide right path and suggest you the best way.you can do 12th with biology subject from nios also but it ia open school so you might face problems in future because if you are interested in Neet then MCC changes rules time to time.