BITWA bulldozed 89 illegal structures, including multi-storey and tin-shed buildings, and shanties in a drive at Mulimbagh near Thotarmatha in Dhaka's Kamrangirchar to free the banks of the Buriganga river from encroachment on Tuesday, Jan 19, 2021. Photo: Mahmud Zaman Ovi BITWA bulldozed 89 illegal structures, including multi-storey and tin-shed buildings, and shanties in a drive at Mulimbagh near Thotarmatha in Dhaka's Kamrangirchar to free the banks of the Buriganga river from encroachment on Tuesday, Jan 19, 2021. Photo: Mahmud Zaman Ovi