"Then add 8 soup spoons of condensed milk in my cup before pouring tea in." That would be half cup of condensed milk for 1 cup of tea, way too sweet for me
It is personal preference, I usually do 3 parts coarse ground to 1 part of fine ground. Then I add some toasted coconut for a mysterious touch, and some egg shells for richness. Yes the tea leaves can be found locally.