Wash and chop onion, tomato and vegetables finely. Set aside.
Heat butter+cooking oil in Prestige pressure cooker.
Splutter cumin seeds. Saute onion till transparent. Add ginger garlic paste and saute well.
Add tomato and saute till mushy. Add all the spice powders , salt and mix well.
Lastly add the chopped vegetables and mix well. Add required water and pressure cook in low flame for one whistle.
Open the cooker after the steam is released. Take a potato masher and mash it well to make a paste like consistency.
Add little water if its too thick. Boil for a minute and switch off the flame.
In a tadka pan, melt butter and add pav bhaji masala powder and Kasoori methi. Switch off the flame and add to pav bhaji masala.
Garnish with coriander leaves. Pav bhaji masala is ready.
For pav buns, take the bun and slit it. Heat butter in a dosa tawa and add the pav bhaji masala powder, a pinch of salt and coriander leaves. Mix well.
Dip the pav buns in this masala and cook both the sides till soft. Remove and serve it.
Serve the pav buns with pav bhaji masala, finely chopped onions and lemon wedges. Enjoy.