Take Bajra Flour (Pearl millet flour) in a bowl, add yogurt, turmeric powder, red chilli powder, coriander powder, white sesame seeds, coriander leaves, salt and green chillies and mix well. Add sufficient water and knead into a stiff dough.
Divide dough into equal portions and shape each portion into medium sized tikki and flatten them slightly.
Heat sufficient oil in a kadai, slide in the tikkis and deep-fry on medium heat till golden and crisp. Drain on absorbent paper.
Arrange them on a serving plate and serve hot with tomato ketchup.