Heat the Milk in a large pot under medium heat till it comes to boil.
While the Milk is boiling, keep on stirring it so that no layer is formed at the surface of the milk. Also the milk should not stick to the bottom of the pot.
When the Milk completely boils, switch off the stove and allow the milk to cool down to 80% of its initial temperature.
Now take the Lemon Juice and add equal amount of Water into it. Mix it.
Initially add 1 tablespoon of Lemon Juice into the Milk. Stir the Milk continuously with the help of spatula or spoon.
After some time, again add 1 tablespoon of Lemon Juice and stir it. You will observe that the milk starts to cuddle.
Add the remaining Lemon Juice and keep on stirring it. Stir until the boiled milk gets completely curdled to form Chenna with green coloured whey (water).
If the watery whey is not formed then add more lemon juice to the milk. After sometime you will see the greenish whey is formed.
Now take a strainer and place over a large bowl.
Place a muslin cloth over the strainer and strain the curdled milk to separate the chenna and the whey.
Next pour cold water over strained chenna and wash it so that the sourness and acidic taste of the lemon juice is removed.
Squeeze the muslin cloth to drain out the excess water from the chenna. Chenna should neither be too dry nor it should have high moisture.
Now take out the chenna from the muslin cloth and place over a plate to prepare the dough.
Slightly mash it. We will now knead the chenna along with other ingredients to prepare the Cham Cham balls.