Between 9–10 November 2015, Neyveli received of rainfall; rains continued to downpour in Cuddalore, Chidambaram and Chennai. Continuing rains led to low-lying parts of Chennai becoming sunk by 13 November, resulting in the evacuation of over 1000 people from their homes. The flooding in Chennai city was worsened by years of illegal development and inadequate levels of flood preparedness. 