The 12th Hindi Book Bihar Board by OSS: Our Smart Study is a comprehensive study material for Bihar Board students. This free app is available for Android devices and falls under the Education & Reference category. The app provides a 100 marks Hindi book for Class 12 and includes chapters on Gadya and Padya Khand.

The Gadya Khand comprises thirteen chapters covering various themes such as society, education, and personal experiences. The Padya Khand includes eleven chapters featuring poems from renowned poets like Surdas and Tulsidas. The app also includes the popular poem 'Usha' by Sumitranandan Pant. The app provides a detailed analysis of each chapter and poem along with important questions for better understanding. The app has a user-friendly interface that makes it easy to navigate and use.