In a pan, add 2 cups of water and 2 tbsp jaggery. Mix well and let the jaggery melt completely.
Meanwhile, in a mixer jar, add 1 cup tuvar dana, ¼ cup green peas, 4–5 spicy green chillies, and 1 inch ginger. Grind coarsely without adding water.
Add the ground dana mixture to the boiling water. Then add ½ tsp turmeric powder, salt to taste, ½ tsp red chilli flakes, a pinch of hing, 2 tbsp white sesame seeds, ¼ cup green garlic, ¼ cup coriander leaves, 1 tbsp oil, and 1 tbsp lemon juice. Mix well.
Once the mixture starts boiling, add 1 cup rice flour, 1 cup coarse wheat flour, and 2 tbsp besan. Mix well using a rolling pin to avoid lumps.
Cover and cook the mixture on a low flame for 5 minutes, until all the water is absorbed and the mixture binds together.
Transfer the mixture to a mixing bowl. When it is slightly hot, grease your hands with oil and smooth the dough. The dough should be medium-soft. If it feels too soft, add a little coarse wheat flour and adjust the consistency.
Grease your hands again, take small portions of the dough, and flatten them between your palms to make medium-thick theplas. Prepare all the theplas in the same way.
Heat oil and fry the theplas on a medium flame until they turn crispy on both sides.
Serve tuvar dana thepli hot with chutney or curd.