If you add milk and sugar to a green tea recipe you are making tea the India way. Indians almost always drink organic green tea with milk and sugar. Some add cinnamon, cardamom and often ginger shreds. These are the three most popular extracts that tea lovers in India add to tea recipe.
Tea is an inseparable part of food consumption in Indian families and the above recipe is standard household way of consuming chai tea. But there are families who are specialist tea drinkers and they have evolved tea recipes of their own of which you come know only when you visit their homes. I have had experience of drinking tea in one home the taste of which I admired like anything. Only secret that I could extract of them was that they had added cinnamon powder in the tea brew. But I knew there were much more masalas in the tea that I was relishing sip after sip.
Black tea without milk may be consumed in some remote inaccessible cold regions of Indian sub continent. In spite of the basic habit of tea drinking in India. There are subtle nuances in the tea flavor depending upon tea blend and variations in taste of milk and even sugar. Hence tea in India is as diverse as India itself is. And for each family that comes up with its own unique recipe one should respect and regard their ingenuity and asking for their recipe is inappropriate, until unless they reveal it to you.
Just learn to sip that wonderful liqueur man!