Heat oil in a pan add mustard seeds. Let them crackle.

Add green chilli and curry patta. Saute few seconds.

Now add onion and ginger garlic paste. Stir well. Saute till the onion turns light brown.

Add tomatoes. Saute till tomatoes soften.

Then add all spices. Mix the spices well with onion tomato mixture.

Now add idlis. Mix well.