At first boil all veggies and mashed it.Now heat a pan add oil and butter,cumin seeds,potatoes,tomato,onion and mashed.

Now add turmric powder,salt,red chilli powder,pav bhaji masala,garammasala and wait for 5 mints.

Now add lemon juice and turn on the gas flame and heat the non stick pan and roste the pav and serve it.