Peel and cut drumsticks and bottle gourd pieces. Wash and take in a cooker. Add salt and make 3-4whistle.
Turn off flame and strain with strainer.
Now take drumsticks on a plate remove the pulp with a spoon and mix with boiled mixture water. Mix all bottle gourd cubes.
And blend with a blender.

Meanwhile, heat oil and saute ginger paste. till looks red. And add drumsticks bottle gourd mixture add salt and pepper powder and 1/2cup water to adjust consistency. Stir well. And cook for 5-7min.on mid. Flame.