In a sauce pan / pot, put water, ginger, cardamom, cinnamon, cloves, fennel seeds and let it come to a boil.
After water comes to a boil, put tea and let it steep for 3-5 minutes until tea loses its color and fragrance into the water.
Cool the tea mixture and let it come to room temperature.
Strain the tea using a sieve and mix well with the condensed milk. Taste for sweetness and adjust condensed milk according to taste.
Cover and refrigerate until ready to serve. Garnish with mint sprigs just before serving. Tea is best served when chilled.