India, Jan. 21 -- Despite restrictions of Graded Response Action Plan stage 3 in place, residents across Gurugram continue to report frequent incidents of waste burning in several neighbourhoods, raising concerns over inaction by civic authorities even as air quality remains in the "very poor" category.

The complaints surfaced on a day when the Commission for Air Quality Management announced the revocation of Grap 4 restrictions across Delhi NCR following a marginal improvement in air quality. Delhi's Air Quality Index stood at 378 on Tuesday, compared with 410 on Monday and 440 on Sunday. Grap 4 curbs had been imposed on Saturday, January 17, after air quality slipped into the "severe" category.

Residents from Sectors 23A, 52, 54, 80 t...