Several residents of the Magrahat, Usthi and Mandirbazar areas in South 24 Parganas district fell ill after drinking the alcohol on Tuesday night.
Four people have been arrested.
Toxic alcohol deaths are a regular occurrence in India.
Last week, the state of Gujarat brought in a new law making the illegal manufacture and sale of toxic alcohol there punishable by death.
About 70 people are in a critical condition, said state government minister Shyamal Mandal.
“More and more people are turning up with symptoms of liquor poisoning and one local hospital is now overcrowded,” district administrator NS Nigam told the AFP news agency.
Some of the critically ill had been transferred to Calcutta, Shyamal Mandal said.
Medicine and doctors were being rushed to the Diamond Harbour hospital.
Four breweries were ransacked after the deaths began to be reported, AFP quoted officials as saying.
The liquor is usually spiked with methyl alcohol and industrial spirits which can lead to fits, vomiting and death.
India has witnessed many incidents of toxic alcohol deaths.
• At least 10 people killed in Tamil Nadu in February 2010
• At least 30 people killed in Uttar Pradesh in September 2009
• Some 107 people killed in Gujarat in July 2009
Gujarat has taken the strongest action on toxic liquor with its new law, which it says is intended to deter those involved in the illegal trade.
Gujarat is the only state in India where alcohol is totally prohibited by law.
Image source: Wikimedia Commons President-elect Donald Trump celebrated his election victory at the Ultimate Fighting…
Millions of voters across the US chose to return Donald Trump to the White House…
Donald Trump declares victory in the US election as he addresses jubilant supporters in Florida.…
Stocks around the world are rising as Donald Trump appears to be on the cusp…
Donald Trump has won Pennsylvania, North Carolina and Georgia and taken a lead over Kamala…
Quincy Jones, the celebrated musician and producer who worked with Michael Jackson, Frank Sinatra, Ray…