1. Braise onion with taj until golden. Add masala and spices, braise till fragrant.2. Add steak, mustard powder and vinegar and coat well.3. Cook till no water remains. Add more water if needed to cook till steak is tender.4. Then add tomatoes and sauces.5. Cook until a thickened gravy has formed. Remove taj.6. Fry chips. Season with salt.7. Shred the steak.8. Place chips in a serving dish.9. Spoon over all the steak gravy.10. Sprinkle on cheese, garnish with dried herbs, chillies and coriander.