First chop tomato.
Now heat ghee in a cooker and put asfotedia and cumin seeds.
Now add tomato and fry 2-3 minutes.
Now add all spices and fry it.
Peel n chop banana.
Now add 1/2 c water and banana pieces.
And give whistle one and then cook on slow gas for 4-5 mins.
Finally add curd after swtich off the gas.