Gritty dramas set in Kolkata or rural Bengal often use authentic local dialects and slang to maintain realism.
Typically, "Gali" refers to alleys or small streets, often found in older parts of cities or towns. A Bengali Gali list could imply a collection or directory of such alleys or streets, possibly in areas with a significant Bengali population or in Kolkata (formerly known as Calcutta), the capital of West Bengal, India.
For someone traveling to or living in a predominantly Bengali-speaking area, having a list of localities, streets, or alleys in Hindi could be very helpful. This could be particularly useful for emergency services, tourists, or individuals who are not fluent in Bengali.