Heat oil in a pan and add mustard seeds, cumin seeds, curry leaves, red chili, urad dal, and chana dal. Fry until aromatic and the seeds begin to splutter.
Add green chilies, garlic or ginger, and hing. Sauté for a minute until fragrant.
Add beetroot and turmeric. Sauté for 2-3 minutes, then cover and cook on low heat until tender, adding water as needed to prevent sticking.
Add salt, coconut, and lemon juice or spice powder. Mix well and cook for another 2 minutes.
Taste and adjust seasoning. Serve hot with rice.