Grate the raw mangoes.
Mix it well with salt, chillies, turmeric, kalongi, garlic and mustard oil.
Cut the cloth into small squares.
Put the achaar mix into it and tie it like a small potli. Make all the potlis like this.
Put them in a nice clean jar and pour 1/2 cup vinegar over it.
Keep it in indirect sunlight for 4-5 days and its ready to eat
If you wish to preserve it for longer time then keep the jar in the fridge.
Note: Add the oil as it is, do not heat it or the color of the achaar would darken.
Key Ingredients: Garlic, Onion Seeds, Turmeric, Red chilli, Salt, Mustard Oil, Vinegar, mango