Once the oil is hot, add in the cumin seeds and allow them to sizzle
Add sliced onions and sauté it till it changes colour on a medium flame
Add ginger and garlic paste for a minute
Add chopped tomatoes, turmeric powder, red chili powder, salt and coriander powder.
Cover and cook for another 2 minutes till done
Add turnips, mix it well and cover it and cook on low flame till it 3/4th done
Add chopped spinach, green/red chilies and cilantro. Mix well, cover it and cook on low flame till it changes the colour or look like roasted and oil gets separated