NationalDelhi pollution: Haryana shuts schools in four districts, imposes other restrictionsTestHostEntryNovember 14, 2021June 3, 2022 by TestHostEntryNovember 14, 2021June 3, 2022 New Delhi : In order to curb air pollution in districts around the National Capital Territory of Delhi, including Gurgaon, Faridabad, Sonipat and Jhajjar, the...