In the same pan add 1 tablespoon oil, mustard seeds, cumin seeds, cloves, fenugreek seeds and curry leaves. Add in asafoetida, grated onion, green chillies, ginger and garlic paste and sauté for a minute. Add in the sour cream and bring it to boil stirring occasionally. Once it reaches boiling point lower the gas to low setting. Add in the ladyfingers and grated carrots and let it cook for about 5 to 6 minutes.