How not to make a slasher movie, simple don't connect it with emotions.
It's a cheap movie that encourages stereotypes on North-east India who is already suffering from racism by the rest of the India for being like Chinese, Chinky-Minky, Nepali(even they're aren't heavy non-veg eaters). Even the muslim film of the main character is more concerned about food and not a scene is shown him eating meat or his favourite beef
As an Assamese, I can assure that meat is equally consumed here as all of India, but their are people who get rid of it slowly till their old-age
The only extra thing than the rest if India we it is pork and some abundant birds(which I don't promote). We don't eat beef, Dogs, insects, probably some non Assamese tribes do