Heat oil in a cooker add onion till its light brown
Now add all the dry masalas and cook till for 2-3 mins
Now add tomatoes and mix well cook till tomatoes are but tender
Now put 1 cup water and give 3-4 whistle...
Now open the cooker and mix the gravy with the dal ghotni (hand wooden beater )
Now add curd and mix it well and cook till oil seperates
add kathal and keep stirring for few mins saute it nicely
Now add 1 glass of water and gv 3-4 whistle...When yoy open the cooker adjust the gravy by adding water if necessary
Boil it on liw flame fir 7_8 mins.
Off the flame and sprinkle sum garam masala....
Serve hot with rice or roti.