"We now have 170 confirmed dead," Shyamapada Basak, health services director of West Bengal state told AFP. He added that the toll was expected to rise further as 145 people were still critically ill in local hospitals.
Police said they had arrested another two people, taking the number detained to 12 over the past two days.
"We are now looking for Khonra Badsha, the kingpin of the racket involving the sale of illicit, spurious liquor in the district," West Bengal police additional director general, Surojit Kar Purokayastha told AFP.
The victims of Tuesday's alcohol poisoning are from 10 villages in an area near West Bengal's border with Bangladesh.
Speaking in the state assembly, Chief Minister Mamata Banerjee said the home-made liquor industry had "assumed the proportions of a small-scale industry".
Suggestion a nexus between politicians and bootleggers, she said "political intervention" made it difficult for police to crack down on the illegal liquor trade.
Many of the victims were labourers and rickshaw drivers too poor to afford branded alcohol who stopped for a drink at illegal bars or bought from bootleggers after work.
Purokayastha said police teams had raided numerous locations in the area, looking for "moonshine" stills manufacturing the illicit liquor.
"We have destroyed more than a dozen distilleries in the past few days," he said.
Local hospitals have been overwhelmed by victims arriving either unconscious or complaining of abdominal pains and burning in their chests.
Police official Purokayastha said that a forensic team was working to ascertain the chemical ingredients in the toxic brew.
Earlier on Thursday, district magistrate Narayan Swarup Nigam told AFP that methanol had been detected in at least 20 victims.
Methanol is a highly toxic form of alcohol sometimes used as an anti-freeze or fuel, but also added by producers of home-brew liquor to increase the alcoholic content of the drink.
If ingested, it can cause blindness and liver damage and it kills in larger concentrations.
A 2004 World Health Organisation report concluded alcohol abuse was one of the main killers of young Indian men, while an Indian government-funded study the same year found 62.5 million people were unhealthily dependent on alcohol.
Other recent mass poisonings caused by home-brewed alcohol include one in July 2009 when 43 died in the western state of Gujarat, which bans the sale of alcohol.
In May 2008, more than 168 people died in the southern states of Karnataka and Tamil Nadu.
COMMENTS (9)
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@Qazi - 98% of the people who have died and undertaking treatment here are illegal bangladeshi muslim immigrants. Read off the names in a local news source.
@khalis: Read the article in its entirety before you jump on my comment. “Political intervention” made it difficult for police to crack down on the illegal liquor trade. It is because of this political intervention that people died. The people who manufactured the alcohol are responsible for these deaths, hence my comment buray kaam ka bura anjaam. Also, I don't see any rationale on your part to drag Muslims into this story. They died because of the misdoings of others just like these people did. If for a moment I accept your flawed logic, then it would be fair to say that those who died in Bombay on November 26th also caused their own deaths, no? Stop twisting my words to come up with comments. Be original and creative otherwise buray kaam ka bura anjaam may apply to you too some day. Grow up, kid!
@Mehboob Aap Kay Qadmon Main: so thousands of muslims being killed in heinous ways like terror strikes and drones in pakistan and middle east is also the result of burey kaam they did. thats why they got blasted off and only pieces remained for burial.
im not supporting hooch and alcoholism but the way you are coming out to show your condolence is not acceptable.
@Qazi: Well aren't we feeling a little self-righteous today? You better hope the next time you eat outside that you don't get exposed to salmonella or e.Coli. The problem is not with the food or drink but rather how it is prepared.
Buray kaam ka bura anjaam!
this is pathetic
i really thank God to forbid Muslims to drink alcoholic drinks, so it is not a major issue with Pakistan. But sporadic events in areas of Pakistan have also occurred resulting in deaths