The low pressure area over Bay of Bengal is very likely to concentrate into a depression soon and bring widespread rainfall across Tamil Nadu for the next couple of days, the Meteorological department said here on Tuesday. Comparatively, though there was a decline in rainfall in Chennai and nearby districts like Chengelpet on Tuesday, regions like Tamil Nadu's Nagapattinam and Karaikal in the Union Territory of Puducherry received heavy to very heavy rainfall as per official inputs available here.

Starting from morning and till 9.30 PM (Nov 9), Karaikkal recorded about 20 CM and Nagapattinam approximately 15 CM and "rains may continue in such regions," an official here told PTI adding final data would be made available on Wednesday. Chennai and nearby northern regions mostly experienced light to moderate rainfall till Tuesday night. Water-logging however, continued here and in suburbs in the wake of heavy rains from the night of November 6 till Monday.