Heat Heavy Pan, cast iron if you have it. Add olive oil. Heat oil 2 mminutes. Add Cumin and coriander and cook 1 minutre. Add Ginger and Garlic Paste cook 1 minute. Add sliced Onion and cook 5 minutes. Now add tomatoes and cook 5 minutes. Now add 1/2 ts turmeric powder and crushed chilies. Mix it well.

Drain sliced Karelas from water and add it to the Pan. Mix it well on Medium Heat. Reduce heat low and cook it covered for 15 minutes.