Now take a dough, roll it into a cylindrical shape and attach on the borders of the pan.
Place a lid and press it so that it gets properly fixed from all sides.
To make sure that steam shouldn't come out, place some heavy weight object on the lid. We used mortar for this purpose.
While you were fixing the lid, the water would have started boiling. Keep the temperature/flame to medium & let the water boil for 30 minutes.
For creamy milk
While the tea decoction is getting ready, start the process of making creamy milk on other gas stove or induction, if you have two. For this, place a pan on induction top.
add milk in the pan and let it simmer on low flame.
Keep stirring at short intervals otherwise milk may get burnt.
When the milk reduces to half i.e. from 3 cups to 1.5 cup, add condensed milk in it. We have used the homemade instant condensed milk in it.(You may add mawa too of the same quantity. Do read notes below if you are using mawa).
Let the milk simmer for 2-4 minutes so that condensed milk mixes well with the milk.
Further Process
By the time creamy milk gets ready, 30 minutes of tea decoction would also have been completed. Switch off the respective flames as and when time for both is done.
Remove the lid of the pan carrying tea decoction. Be very careful as the pan, lid and the decoction would be piping hot.
You will have about 1/2 cup of tea decoction in the bowl.
Making Irani Dum chai for serving
Take the serving cups.
Pour 1/4th part of tea decoction through a sieve.
Add 3/4th part of creamy milk over the decoction, but don't use the sieve.
Serve hot.
Notes
We have added just 2 tsp of sugar because condensed milk is already very sweet. But in case you are using mawa in place of condensed milk, then add more sugar according to your taste.Don't mix tea decoction & creamy milk until to be served.