Tafseer Usmani is a free educational application that provides a complete translation and tafsir of the Quran in Bengali. The app includes the translation and tafsir of all the Surahs from Al-Fatiha to An-Nas, along with the translation of the entire Quran. The translation and tafsir of the Quran have been done by Sheikhul Hind Hazrat Maulana Mahmud Hasan Deobandi (RA) and Sheikhul Islam Hazrat Maulana Shabbir Ahmad Usmani (RA) respectively. The app also includes the translation work of Professor Maulana Giasuddin Ahmad, and the editing was done by Hazrat Maulana Abul Bashar Muhammad Saifullah.

The app has been developed by Markazul Quran, an Islamic educational institute. The app has a simple and user-friendly interface that allows users to easily navigate through the Surahs and read the translation and tafsir. The app is a great resource for anyone who wants to read and understand the Quran in Bengali, and it is especially useful for students of Islamic studies.