2015 South Indian floods is a disaster happened in South India.The heavy floods were resulted due to heavy rainfall by the annual northeast monsoon in November–December 2015.The mainly affected regions are Coromandel Coast region of the South Indian states of Tamil Nadu,Andhra Pradesh, and the union territory of Puducherry and especially the most devastated area, the city of Chennai. More than 500 people were killed and over 18 lakh (1.8 million) people were displaced.