In a mixing bowl, add 1 cup jowar flour, 1 cup rawa and mix well. Add 2 cup buttermilk gradually and make medium thick batter. Cover and rest batter for 10 minutes.
Then take 500 grm dudhi, remove its skin and grate it with big hole grater. 2 cup grated dudhi is required.
After 10 minutes, batter is set properly. Batter consistency should be medium thick, if batter is thick then add some buttermilk and adjust consistency.
Add 2 cup grated dudhi, 1 cup coriander leaves, 1 tbsp green chilli-ginger-garlic paste, salt to taste, ½ tsp turmeric powder, 1 tsp red chilli powder, 1 tsp coriander powder, pinch of hing, ½ tsp ajwain, 1 tsp coarsely crush cumin seeds, 1 tbsp sesame seeds, 1 tbsp oil. Mix well.
Batter is ready with medium thick and pouring consistency. if batter is thin then add rava to adjust consistency.
Add 1 tsp eno and 1 tsp lemon juice on it. mix well, frothy batter is ready.
Now heat pan, add some oil and spread it. add some sesame seeds and pour 1-2 ladle batter and spread it. do not make thick chilla. Cover and cook it on low flame for 5 minutes.
Then flip the chilla and cook it on another side till it crispy from both the sides.
Jowar chilla is ready serve with chutney or curd.