in a pressure cooker add the thoroughly washd lentils with water half a finger or a lil more above the level of lentils and cook til 4 whistles

if even after 4 whistles the lentils r nt tender enuf 2 b dissolvin then giv a couple of whistles more

if u dont hv a pressure cooker den in a pot add lentils with water filling half of the pot.cook it covered til the lentils r cooked enuf to be dissolving

now in a saucepan heat the oil and add the cumin seeds and the mustard seeds

when the seeds crackle add the garlic, ginger ,chilies

saute a lil and the onion and saute til golden

nw add cumin,coriander,turmeric,red chili powders and salt and sprinkle some water.fry for a few minutes

nw add tomatoes and fry til the tomatoes r tender.

with a spoon mash the lentils with the water til u get a relatively smooth mix.add this mix to the pan.bring it to a boil & keep it on a medium high for a few minutes til u see the dal thickening

then simmer til u get the desired thicknes(which shud b sumthing lyk a creamy soup)

add the garam masala and the lemon juice and the coriander leaves and leave it on the heat a min more

serve hot with rice