In a mixing bowl, combine the yogurt, grated carrots, chopped cucumbers, pepper powder, finely chopped onions, and fresh coriander leaves.
Squeeze in the lemon juice, that will brighten up the flavors of your yogurt mix.
Sprinkle salt and pepper to taste, adjusting according to your flavor preferences. Mix the ingredients thoroughly for an even distribution of flavors.
Take two slices of your preferred bread and generously spread the yogurt mixture on one side of each slice.
Press the slices together, ensuring the yogurt mix is evenly distributed between the bread slices.
If you desire a warm sandwich, grill it on a pan with a bit of butter or margarine until the bread turns golden brown.
Cut the sandwich into halves or quarters, making it easy to handle and share.