Heat a medium sauté pan over medium heat. Add the shallot and cook until translucent, 2 to 3 minutes.
Stir in the ginger-garlic paste and cook until the raw aroma disappears, about 1 minute. Add the sliced chilli and mix well.
Season with salt and turmeric, stirring to coat evenly. Add the clams and toss to combine.
Sprinkle in the cilantro and grated coconut, cover, and steam for 3 to 5 minutes, just until the shells open.
Add the dried kokum and gently mix to distribute evenly. If the pan releases excess liquid, remove the clams and simmer the sauce for 1 to 2 minutes until slightly thickened, then return the clams to coat.
Serve hot, garnished with extra sliced chili and cilantro.