If you're a student of Bihar Board and studying in class 12, then the 12th Hindi Objective 100 Marks app by OSS: Our Smart Study is a must-have for you. This free app is designed to help you prepare for your Hindi exams and score well.

The app includes objective questions from all the chapters of the Hindi book, including 'Gadya Khand' and 'Padya Khand.' The questions are designed to help you practice and understand the concepts better. The app is easy to use, and you can select the chapter you want to practice from the main menu.

The app has a simple and intuitive interface that makes it easy to navigate. You can use the app to practice and revise your Hindi chapters at any time, and it is especially useful during exam preparation. With the 12th Hindi Objective 100 Marks app, you can be sure to score well in your Hindi exams.