Restaurant style Red Thai Curry

Name: Restaurant style Red Thai Curry
Ingredients: 2 cups coconut milk; 2 cups cubed pumpkin; 1 cup cubed red capsicum; 2-3 tablespoon green peas; to taste Salt; For red curry paste; 2 teaspoon coriander seeds; 1 teaspoon Cumin seeds; 1/2 teaspoon black pepper corn; 2-3 whole dry red chillies(soaked in hot water for 1 hour); 1 big onion chopped; 4 garlic cloves chopped; 1 inch long galangal chopped; 1 teaspoon kafir lime zest; 1 stalk lemongrass(white part) chopped; 5-6 stem of fresh coriander chopped; 1 teaspoon salt