Heat the vegetable oil in a large pot over medium heat. Add the diced onion and sauté for 4 to 5 minutes until softened.
Stir in the minced garlic and fresh ginger, cooking for 1 minute until fragrant.
Add the yellow curry powder, garam masala, and turmeric powder. Stir continuously for 30 seconds to toast the spices.
Pour in the coconut milk and vegetable broth, stirring well to combine. Bring the mixture to a gentle simmer.
Add the diced potatoes, diced carrots, and cauliflower florets to the pot. Cover and cook for 15 to 20 minutes, or until the vegetables are fork-tender.
Stir in the green peas and cook for an additional 2 minutes until heated through.
Serve the warm vegetable korma over the cooked white rice, garnished with slivered almonds and fresh chopped cilantro.