Skin the pineapple and cut into cubes after removing the core.
Heat oil and splatter onions, garlic, cinnamon, curry leaves, rampe and lemon grass and fry till onions are light golden brown.
Add the pineapple, chili powder, turmeric powder, and salt, and fry for 5-10 minutes.
Add the coconut milk and cook over medium heat till the gravy is thick.
Sprinkle fennel powder and simmer for 5 more minutes.