The 12th Standard Tamil Nadu is an educational initiative by the state government of Tamil Nadu to provide free study materials to students in the class 12th in Tamil and English medium. The materials are intended to be used as a reference while studying for the class 12th exams. The study materials include notes, questions, solutions, and other material that can be used to prepare for the exams.

The app has a section for all subjects in Tamil and English. It has been designed to help the students prepare for the class 12th exams, and to assist them in understanding the concepts and principles in a better way.