বাংলা শুদ্ধ এবং অশুদ্ধ বানান সমূহ ~ Bangla Grammar is a free Android application developed by Bangla Public Library. This educational and reference app is aimed at students who need to improve their understanding of Bengali grammar. The app provides a comprehensive guide to Bengali grammar, including both correct and incorrect sentences.

The app is a great resource for students who are preparing for exams or looking for a complete guide to Bengali grammar. The app is also useful for those who want to improve their Bengali language skills by learning the correct usage of grammar in sentences. Moreover, the app can be downloaded for offline use, making it convenient for students to study anytime, anywhere. Bangla Public Library has made the app available for free, making it accessible to everyone who wants to improve their Bengali language skills.