The Turag River (Bengali: তুরাগ নদী [t̪uraɡ nɔd̪i]) is the upper tributary of the Buriganga, a major river in Bangladesh. The Turag originates from the Bangshi River, the latter an important tributary of the Dhaleshwari River, flows through Gazipur and joins the Buriganga at Mirpur in Dhaka District. It is navigable by boat all year round.
Exemplifying the riverine character of Dhaka, the Turag is abundant in fish but suffers from acute water pollution. While attempts have been made to marginally widen the river, the majority of industry has made little effort to follow environmental law and the water has become visibly discolored.
Tabligh Jam'at, a popular Islamic movement originating in South Asia, initially took hold in Dhaka in the 1950s as Maulana Abdul Aziz and other leaders set up the regional headquarters at the Kakrail Mosque near Ramna Park. An initiative of the movement is an emphasis on the six uṣūl or "basic principles," two of which include ilm, the pursuit of knowledge, and dhikr or zikr, a method of prayer involving repetitive invocation of hadith and Qur'an passages. To this end, the movement places importance on ijtema or assembly, where members gather to practice and participate in dhikr, hear religious sermons and discuss their activities.
The largest of these, the Bishwa Ijtema, is situated by the Turag River in Tongi and attracts estimates of between two to four million Muslims annually as well as representatives from over sixty countries, making it the second biggest Islamic congregation after the Hajj.
Earlier this river was called as (Bengali: "Kohor Doriya"), "Kohor river".
Condition of the river
There are many industries dotting the banks of this river which dispose their industrial waste into the river. These waste materials pollute the water of the river to a dangerous level. During the Bishwa Ijtema, Muslims pilgrims coming from all over the world stay at the riverside for days. Unfortunately they lack proper accommodation and an adequate sanitation system. As a result, human waste and garbage generated is disposed into the river. This also pollutes the river heavily. Moreover, the river is heavily polluted by factories lining the bank of the river.