Heat the Tawa and Temper: Heat an iron tawa (griddle) and add oil. Once it's hot, add mustard seeds and let them crackle, then add cumin seeds and curry leaves.
Saute the Aromatics: Add the crushed green chilli and garlic paste, and saute for a minute. Next, add the chopped onion and saute on medium heat until slightly cooked.
Add Spices and Vegetables: Add turmeric powder and mix well. If you're using asafoetida, add it now. Then, add the chopped tomato and saute for another minute.
Season the Mixture: Add salt to taste and then mix in the chopped coriander leaves.
Cook the Bhindi: Add the chopped bhindi to the tawa and mix everything thoroughly on medium heat.
Steam and Simmer: Reduce the heat to low, cover the tawa with a lid, and let it cook for 2-3 minutes to allow the steam to cook the bhindi.
Finish Cooking: Remove the lid and stir. Continue to cook on low heat for another 2-3 minutes, stirring occasionally, until the Tawa Bhindi (Okra Fry) is tender and cooked through.