In a bowl, take curd and add besan, add turmeric powder, red chilli powder, Dhaniya Powder, salt to taste and whisk well till it comes to a smooth paste.
Head a heavy bottom kadai and add ghee. Add Jeera and hing/asafoetida.
Next add finely chopped onion and salt and cook on medium flame till the onion is golden brown in colour.
After that add finely chopped garlic, ginger and green chillies. Sauté for couple of minutes.
Turn the flame to low, let the temperature come down then add the curd mixture to kadai.
Make sure to continuously stir the curd mixture to avoid splitting of the curd.
Once the curd is cooked and thickened a bit, add the reserved cooked gatta water.
Bring to boil and add crushed Kasuri Methi. Add more reserved water to adjust the consistency of the gravy.
Once the gravy comes to a boil again, add the chopped Gatte pieces. Cover and cook on medium flame for 5 to 6 minutes.
Ghee should start floating on top once the gravy is ready.
Garnish with fresh chopped coriander leaves.