My Dal Makhni

Ingredients150g whole urad dal (black lentils)50g rajma (red kidney beans)1- large onion, thinly sliced 1- inch ginger, julienne5- garlic cloves1- green chilies ½-teaspoon chili powder 1/2- teaspoon cumin8/10 fenugreek seed100g tomato paste or puree 30ml cream 1-tablespoon oil Garam Masala according to your taste Salt