Vehicles wade through a waterlogged road after heavy rain in New Delhi, India, July 26, 2018. (Xinhua/Stinger)

Children play at a flooded street after a heavy rainfall in Kolkata, India on July 26, 2018. (Xinhua/Tumpa Mondal)

A car goes through flooded street after a heavy rainfall in Kolkata, India on July 26, 2018. (Xinhua/Tumpa Mondal)

People wade through flooded street after a heavy rainfall in Kolkata, India on July 26, 2018. (Xinhua/Tumpa Mondal)

An elderly man being assisted to ride into a hand pulled rickshaw at a flooded street after a heavy rainfall in Kolkata, India on July 26, 2018. (Xinhua/Tumpa Mondal)

School girls walk through flooded street while a hand rickshaw puller carries passenger after a heavy rainfall in Kolkata, India on July 26, 2018. (Xinhua/Tumpa Mondal)

School girls walk through flooded street after a heavy rainfall in Kolkata, India on July 26, 2018. (Xinhua/Tumpa Mondal)

A labor carries load through flooded street after a heavy rainfall in Kolkata, India on July 26, 2018. (Xinhua/Tumpa Mondal)

A girl wades through flooded street after a heavy rainfall in Kolkata, India on July 26, 2018. (Xinhua/Tumpa Mondal)