Mix dry yeast, sugar and warm milk and cover and keep aside for 15 mins. It should froth well. Make a dough with this mixture and olive oil. Add little water if required and keep the dough aside for 2 hours in a warm spot. Punch the dough and knead again and roll out into 7 inch diameter pizza base. Bake in Pre heated oven at 200 deg for 15 minutes. Prepare Tomato paste and apply on top, garnish with veggies and cheese and bake again for 10- 12 minutes in pre heated oven at 200 deg.