Ethnic group means one kind of tribe or community of people. They are different from us. Their religion is different from ours.They are very essential and important part of the culture of our country. They have different culture and tradition. Their clothes, jewellery, cooking and eating habit are different from ours. Several ethnic groups lives in Bangladesh. Among the ethnic peope, the most well known are Chakmas, the Marmas, the Tipperas, the Hajangs, the Garos, the Monipuries, the Shaontals. The majority of those people live in Chittagong Hill-Tracts. Some of them live in some regions of Mymensingh, Rajshahi, Bhola and Sylhet. They practice Jhum cultivation. By religion they are the Hindus, the Christians or the Buddhists. They speak their own mother tongue. They have some common characteristics. They have their own lifestyles. They build their house on bamboo or wooden platforms. Rice is their staple food. Men wear lungi and women wear thamis or sarongs and angis. They are fond of songs, music, dances, theatre and fair. The ethnic people play an important role in our culture and tradition. Though they are different from us, their culture, activities are different from ours but still they are very important part of our country. We should respect them and their lifestyle.
I'm not a good writer but I suggest that you can make you articles 2-3 paragraph to make readers easy to read the content.