Namaj Shikkha Bangla Dua is a free app that will help you get to know the Namaj Shikkha and the different kinds of prayers that are part of the daily life of a Muslim. It contains many different Dua/Niyot/Niom, as well as a number of other resources, such as the Namaj Shikkha itself, a number of prayers, and more.

If you need to know many suras, supplications, niyyats and matters to pray properly, through this application, you can easily learn the correct rules of all prayers, surahs, prayers and masael in Bengali.

One can learn a lot through this application, these are: 
Kalemas, 5-time prayer rules/niyat/dua, Rakaat Qablal Jumu'ah, Qaza Namaz rules/niyyat/supplications, Rulings/intentions/supplications for funeral prayers, Witr prayer rules/niyat/supplications, and Necessary Dua and Rules.