Informal or unorganized sector is that part of economy which is neither taxed nor monitored by any form of government. It provides critical economic opportunities for the poor and unskilled people particularly for women. Informal sector, also known as ‘working for cash’, has been expanding rapidly day by day and more than 90% women workers are engaged in this sector. It is observed that most of the people living on the bank of river or the riverside people are unskilled for which informal sector is the only way for their earning. Therefore, the present study is an attempt to explore the forms of informal workers among the riverside people of Brahmaputra and their living condition in Goalpara district. The district is situated on the South bank of Brahmaputra river and the people residing at the riverside area are basically backward and unskilled for which engaged largely in informal sector. The study will reveal the different forms of informal workers living in a backward condition with no security for their livelihood, particularly the women workers.