Out of the 20 lakh, over four lakh people were affected in the last 24 hours alone, while 2,301 people have been evacuated from their houses.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/16-dead-20-lakh-affected-165-villages
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-expess-kolkata
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-bengal
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/floods
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rainfall
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/jharkhand
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/howrah-d
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/natural-disasters