Green Curry Shrimp Kebabs with Basmati Rice

In a blender or food processor, puree coconut milk, lemongrass, ginger, curry paste, garlic, and brown sugar. Transfer 3/4 cup green curry sauce to a large sealable plastic bag, reserving the rest (about 1 1/4 cups). Add shrimp to bag and distribute curry sauce to coat. Let marinate, refrigerated, for 2 hours. Meanwhile, immerse 8 bamboo skewers in a shallow pan of cold water. Remove shrimp and discard sauce. Thread 1 lime slice and 4 shrimp onto each skewer; set aside. In a small pot over medium-low heat, simmer reserved green curry sauce, covered, for 20 minutes, stirring occasionally. Meanwhile, heat grill to high and grease grates with olive oil. Grill kebabs until shrimp are opaque and limes are soft and char marks form, about 2 minutes per side. Serve kebabs with rice and green curry sauce on the side for drizzling.