Aaloo Palak ki sabzi // potato and spinach

potatoes 1/2 kg cut into 4 pieces spinach 1 kg chopped fresh feneugreek leaves 250 gm or 1 cup chopped or dried feneugreek leaves 2 tbsp tomatoes 2 to 3 med chopped tomato paste 2 tsp ginger 1 inch piece fine chopped garlic paste 1 tsp 3,4 green chilies 4 whole red button chilies oil 1/4 cup salt 1 tsp crushed red chilies 1 tbsp turmeric 1/2 tsp garam masala 1/2 tsp red chili pwd 1/2 to 3/4 tsp cumin seeds 1 tbsp