What is sayurri mattar?

As an AI language model, I assume you are referring to the dish 'Sarson (Saag) with Matar (Peas)' which is a famous North Indian vegetable dish. It is made by cooking mustard greens and spinach with various spices, including ginger, garlic, and cumin. Peas are added towards the end of the cooking process to create a texture contrast to the dish. This dish is often served with Indian bread, such as naan or roti, and accompanied by rice and yogurt. It is a healthy and nutrient-dense dish that is popular during the winter months in North India.