Take a little jaggery syrup in water
First stage - immerse in the water
Second stage - syrups stay in the water but we can't roll it
The third stage- syrup stays in the water and you can combine it into a soft ball (not so firm and you can easily press it)
The fourth stage- syrup stays in the water and you can combine it into a firm ball. That is the consistency we are looking for. Avoid stone consistency