Cut courgettes into slices. Fry for about 10 to 15 minutes until slightly golden. Once done, remove from the oven and set aside.
On the same pan, sauté onions until translucent. Add the garlic and sauté until fragrant. Stir in the tomato paste and cook for 2 minutes. Add turmeric, coriander, cumin, chilli powder, vinegar, sugar, salt, and pepper. Stir well and let the spices cook for another minute.
Add tomato cherry tomato and water, mix well. Add the green chilli and roasted courgettes to the pan. Cover the pot and allow to simmer on medium heat for about 10 to 15, or until the tomatoes are cooked and the mixture has thickened.
In a bowl, combine the yoghurt, dried dill, dried mint lemon zest, and lemon juice. Season with salt and pepper. Stir well until all the ingredients are well mixed.
To serve, spread a generous layer of the yoghurt sauce on a serving plate. Gently spoon the courgette and tomato mixture over the yogurt. Garnish fresh dill. Enjoy the Courgette Borani warm or at room temperature. Serve with naan, pita, or crusty bread.