New Delhi, Oct. 29 -- Even as Delhi government prepares to tighten curbs on construction and demolition activities ahead of winter - with a complete ban on construction and demolition activities from December 10 to January 20 under its winter action plan- several major infrastructure projects across the Capital could continue unimpeded under exemptions that experts said will do little to address the city's worsening dust pollution crisis.

Under the Graded Response Action Plan (Grap), essential public infrastructure projects enjoy exemptions that allow them to continue through several stages of escalating pollution restrictions. Even under Stage IV, the most stringent level, exemptions continue for construction for metro rail, railway pro...