Boil 1 liter of milk
Let the milk cool until it is warm, not hot
Add 1 to 2 teaspoons of plain curd as starter
Mix gently and well
Cover the container
Keep it in a warm place for 6 to 8 hours
Do not move or disturb it while it sets
Check if it has turned into dahi
Refrigerate after it sets
Use the dahi as needed