Indian Puff Pastries Stuffed with Spicy Vegetable Filling

Name: Indian Puff Pastries Stuffed with Spicy Vegetable Filling
Ingredients: 4 sheets Phyllo dough puff pastry sheets; 1/4 cup water of milk to seal the edges; 1 butter or egg for brushing the pastry; 2.5 tablespoons oil; 1/2 teaspoon mustard seeds; 1/2 teaspoon cumin; 1/4 teaspoon Asafoetida; 8-10 curry leaves; 1 Green chili, finely shopped; 1 teaspoon ginger-garlic paste; 1/3 cup cashews; 1.5 teaspoons garam masala/curry powder; 1/2 teaspoon turmeric; 1/2 teaspoon red chili powder; 1 tablespoon lime/lemon juice; salt to taste; 3 boiled, peeled and mashed potatoes; 1/2 cup peas; 1/2 cup corn; 2 finely chopped or shredded carrots; 1/4 cup cilantro (optional)