Chop all the vegetables and cut the paneer in dices. Then blanch the peas, beans and carrots till slightly soft.
Add the yeast and sugar to warm water & bloom for 10 mins. Then mix together flour, salt, sugar, red chilli flakes and oil. Add the yeast & knead to a soft dough. Proof for 15 mins.
Heat the oil in a pan and add green chillies, onions, ginger garlic paste and sauté on medium heat till onions turn brown. Then add the tomatoes & cook till mushy. Now add the blanched vegetables and the dry spices and salt. Cook for 2 mins and add the paneer. Mix carefully. Now add the rice, saute and add water. Cook till the rice is ¾ done. Let it cool.
Grease two baking dishes & preheat the oven. Punch the dough and divide into 2 halves. Roll them into two large chapattis. Place each in individual baking dishes and fill the cooled biryani and shape like a potli . Smear the potlis with milk wash.
Bake in a preheated oven at 180°C for 25 mins. Serve hot.