THIS IS SERIOUS PLS HELP (PARASITES)

I've been facing a peculiar problem lately in my home in Kerala - an infestation of snails! It's not just my house; my neighbors are also struggling with the same issue. What's surprising is that our town is generally clean, and we never had a snail problem before. This is a relatively new issue, and we're not sure why it's happening. The problem is getting out of hand. Every time I use the washroom, I see these slimy creatures, and it's really disgusting. I often accidentally step on one, and the slime that's left behind is frustrating to clean. But that's not all - the snails are literally everywhere! They're on our food, drinks, chairs, tables, and every other surface. It's like they're taking over our homes! We're at our wit's end and don't know how to fix this problem. We need some advice on how to get rid of these pesky snails and prevent them from coming back. Can anyone suggest some effective solutions? Also suggest something that would execute them instantly (Salt dosent work on these things idk why) 🗣