Chop the veggies roughly. Pressure cook all the veggies till soft(say 4-5 whistles).Drain water and reserve the stock.
Then mash the veggies well with a ladle. Set aside.
Heat oil and 1 butter in a pan, saute the onion(reserve some for garnishing too), add ginger garlic paste and fry till slightly browned.
Add tomatoes and saute till mushy and raw smell leaves.
Now add capsicum and saute for 2mins.
Add turmeric and red chilli powder, required salt and mix. Then add the mashed veggies and combine.
Add pav bhaji masala powder and mix well. Now add the reserved stock water.
Allow it to boil (adjust salt at this stage) and let it cook in sim till it becomes slightly thick.
Add lemon juice and coriander leaves and switch off.
Toast the buns with remaining 1tablespoon butter.
Garnish onions and sprinkle few drops of lemon. Always serve hot!
Serve the toasted pav buns with bhaji!