Sir: Apart from the recent operation against huge billboards in Clifton to prevent disasters in the coming monsoon, now it is being observed that huge billboards are being installed in great numbers in Gulshan-i-Iqbal town, especially on Rashid Minhas Road.I remember the previous City District Government Karachi had removed a number of billboards in view of the danger during the monsoons. Now huge billboards are being installed on a daily basis. The authorities should check this to avoid any accident during the coming rains. Nazim BadarKarachi