In a bowl, soak rice, toor dal, cumin seeds and peppercorns in water for 20 minutes then grind along with green chillies, ginger, turmeric powder and coconut to make a fine paste.
Combine this ground paste with curd in a bowl and mix well. Set aside.
In a pan, heat some oil and fry lady finger pieces for 5 minutes until cooked. Keep aside.
In a small pan, heat coconut oil and add mustard seeds, split red chillies, asafoetida and curry leaves. Sauté for a minute and keep aside.
In a kadai, add curd and ground paste mixture along with 1cup water and simmer. Add salt and cook for 5 minutes until the first bubble appears.
Add the fried lady finger pieces immediately and prepared seasoning mixture. Turn the heat off and do not cook the gravy further otherwise the curd may start to curdle.
Serve with steamed rice and enjoy.