India, You'll get properly boiled tea with milk (called chai) unless you specifically ask for black/ red tea which you'll only get in Kerala (called black/kattan ) & in our NorthEastern states (called red tea/lal cha). Tea is by default served hot unless you ask for iced tea which is just tea-coloured flavoured sugar water made with a premix.
The 2nd best way to piss off an Indian is to serve tea brewed with teabags, the best to upset us is to serve tea brewed with teabags and using powdered milk.
We like our tea to be boiled with milk, water, spices, and sugar/jaggery. If you want to make our day, boil the tea with condensed milk, water, and spices and watch us beam. The spices will always be fresh and any combo of sweet cardamom, ginger, cloves, star anise, pinch of cinnamon, lemongrass, black pepper, fennel seeds,
In Kashmiti homes/ restaurants, you'll get the saffron flavoured Kehwa (no milk in this one, but lots of flavour) and the pink colored salt tea (noon chai) made with green tea leaves, milk, rock salt, cardamom, pistachios, almonds. and baking soda.
Glad you liked it. Tea is very serious with us and it should be boiled. Teabag tea is just warm dishwater in comparison.
A compliment on tea (chai achchi bani - the tea is made well) is huge and will make you a favouite & repeat guest.
Try to get your hands on loose Assam CTC black tea or (even better) loose Nilgiris CTC black tea. and go to town experimenting with spices and sweeteners (karupatti/palm jaggery adds a new dimension of flavour). Nilgiris tea is forgiving and doesn't get astringent if you overboil it, while Assam will teach you a lesson in bitterness. Darjeeling is all flavour but lacks oomph (or as Indians say 'not strong enough' ). With spices, a little goes a long way. The spices should be crushed and added to the water right in the beginning so they can boil and infuse their flavour. Another trick is to close the lid and let it sit for 1-2 mins after taking it off the flame and before serving.