Growing mint is a very very easy. Mint likes acidic, shallow, moist, soil - shade is ok with mint. In NW Pacific, they just love the shade grounds under evergreen trees. If you are in Central or other regions of India, make a nice thick composted soil, with peet most, tea residue etc. to make a moisture-retaining soil mix. use a wide open pot to grow it or make a bed . Mint is very invasive and takes over the yard - so be careful.
In the US different flavors of mint are available - but if you are keen on Indian flavored mint, then when you buy mint form the (Indian) store, remove the leaves form the stem carefully and collect the stems. make sure that you dont damage the stem tip and the nodes on the stem.
prepare a pot as explained earlier and poke those stems in the pot. keep it moist 9dont dampen the pot as the stems will rot if it's too damp). within a week or two new sprouts will come and new plants wills tart growing.
Picture: Pudina stems ready to be planted.
Picture: Pudina leaves form my garden.
Picture: Stems of mint ready to be planted.
Enjoy home grown mint...