Indian Potatoes and Cauliflower Aloo Gobi

Name: Indian Potatoes and Cauliflower (Aloo Gobi)
Ingredients: 0.25 cup vegetable oil for frying, or as needed; 2 large potatoes, peeled and cubed; 0.5 cup small cauliflower florets; 1 tablespoon vegetable oil; 0.75 teaspoon roasted ground cumin; 3 cloves garlic, minced; 1 green chile pepper, seeded and minced; 1 medium onion, sliced lengthwise; 1 tablespoon ginger garlic paste; 1 medium tomato, chopped; salt to taste; 1.5 teaspoons red chile powder; 1.5 teaspoons garam masala; 0.75 teaspoon ground turmeric; 0.75 teaspoon ground cumin; 0.75 teaspoon ground coriander; 1 pinch white sugar, or to taste; 1 tablespoon water, or to taste; 1.5 teaspoons lemon juice; 1.5 teaspoons ground fenugreek (menthi powder)