How do you crack eggs on a tawa without running away?
Cast iron cookware should always be seasoned. There are many answers here on Seasoned Advice as to the best way to go about it. In order to find the best fit for you, how do you heat the tawa? Well seasoned, you should be able to use very little oil to cook an egg in cast iron. Consider too your heat level, eggs generally do better at a moderate temperature. In addition, consider breaking your eggs into a small bowl and pouring them into the tawa instead of cracking them right onto the hot surface.

This link should get you started: What&#39;s the best way to season a cast iron skillet?