1. In a mixing bowl, combine the rice flour, besan, urad dal flour, cumin seeds, sesame seeds, ajwain, turmeric powder, red chili powder, and salt. Mix well to combine.
2. Add the melted butter to the flour mixture and mix well until it resembles breadcrumbs.
3. Gradually add water and knead into a smooth dough. The dough should be neither too hard nor too soft.
4. Divide the dough into equal portions and shape them into long, thin tubes.
5. Heat oil in a deep frying pan over medium heat.
6. Place the dough tubes into a chakli press or a piping bag with a star-shaped nozzle.
7. Gently press out the dough tubes into the hot oil in a circular motion, forming small spirals. Fry until golden brown and crispy.
8. Remove the chaklis using a slotted spoon and place them on a plate lined with paper towels to drain excess oil.
9. Repeat the process with the remaining dough.
10. Allow the chaklis to cool down completely before storing them in an airtight container.
11. Serve the crispy and spicy Chaklis as a snack with your favorite chutney or sauce.

Note: You can add other spices like garlic powder, black pepper, or chaat masala to the dough to give it more flavor. You can also use a combination of rice flour and gram flour instead of adding urad dal flour.