The Delhi Government has decided to crack the whip on errant vehicles and launch a special drive every week on particular kind of vehicles in order to make such vehicles more efficient. According to a senior Government official, the transport department has prepared a blueprint of the drive to be held every Saturday to check vehicles, including polluting ones, plying in the national Capital.Concerned over the increasing air pollution in Delhi, Chief Secretary KK Sharma had recently convened a meeting with officials of Uttar Pradesh, Haryana, Delhi and Rajasthan and discussed steps including installation of weigh-in-motion systems on border points.“The aim of the special drive is to tighten noose around errant vehicles which are not complying with norms laid down by the transport department. As per the plan, we will conduct special drive across the Capital which will be dedicated to particular type of vehicle on every Saturday during which all our staff will come down with full force,” the official said.For instance, if the department plans cabs for the drive on a week, transport department officials will keep a close watch on all cabs and taxis, including the yellow-black, in different parts of the national Capital.