Lime Jelly Layer: Heat Water (500 milliliter), Granulated Sugar (120 gram), Lime Juice (2 tablespoon) and Lime (2) in a pot. Stir to almost boiling. Add bloomed - soaked with Water (2 tablespoon) - Gelatin Powder (15 gram) and bring to boil again, stirring constantly.
Tilt 6 small glasses at an angle on an egg tray or muffin tray. Pour jelly liquid into glasses. Refrigerate for 2 hours or till set.
Blueberry Layer: Boil Fresh Blueberries (250 gram) and Granulated Sugar (120 gram) in a pot. Mash blueberries with a rubber spatula. Turn off heat. Press mashed blueberries through a strainer.
Add Water (250 milliliter) and Lime Juice (1 tablespoon), stir well and bring to almost boiling. Add bloomed - soaked with Water (2 tablespoon) - Gelatin Powder (15 gram) and bring to boil again. Turn off heat and cool to room temperature.
Remove glasses of set lime jelly from egg tray and stand them up right. Gently pour blueberry jelly liquid onto set lime jelly.
Chill for few hours or overnight till set. Decorate as desired. Enjoy!