In a large mixing bowl, combine whole wheat flour, besan, methi leaves, turmeric, chilli powder, cumin powder, sesame seeds, ajwain, and salt.
Add curd and oil. Mix well.
Gradually add warm water and knead into a soft, smooth dough.
Cover and let the dough rest for 10 minutes.
Divide the dough into 8 equal portions. Roll each into a thin circle using dry flour.
Heat a tawa over medium heat. Cook each thepla until brown spots appear on both sides. Apply a few drops of oil if desired.
Serve hot with yogurt, pickle, chutney, or tea.