Take a large jug and place 250ml fine quality chilled vodka in it.
Add fresh guava juice to the vodka and stir the mixture until both of the drinks mix properly.
Cover the jug properly and place it in refrigerator or freezer until required.
Take out the vodka- guava mixture from refrigerator just before serving your guests and add dry ginger ale, limejuice, approximately 5-6 drops Angostura bitters, mint leaves and plenty of ice cubes. Mix them thoroughly.
Now, equally distribute the drink among six serving glasses and add fresh mint leaves and plenty of ice cubes to each glass.
Serve this fresh drink immediately as the mint leaves can go a little brown with the passage of time. You can present Vodka, guava, and ginger cocktail with some appetisers like sushi or any other that you like.