Chop the veggies lengthwise.
In a wide pan add 2 tsp of oil. Slit 2 green chili and layer the vegetables one by one.
Add 1/2 tsp turmeric powder and salt.
Add 1 cup of water and cover this.
Cover this and let it cook in a low flame. Once the steam starts coming out, open the lid and mix it well.
Cover this again and cook. Mix in between.
Grind the coconut, 2 green chili, jeera, red chili powder, and 1/2 tsp turmeric powder into a coarse paste.
Once the veggies are cooked, add this coconut paste to it.
Do not cook the veggies till mushy. It should be cooked but should retain its shape.
Mix well.
Whisk the yogurt and add it to the veggies.
Mix well and switch off the flame.
Add 3 tbsp coconut oil and fresh curry leaves.
Kerala Aviyal is ready to serve.