In another pan or kadai, add a tablespoon of oil. We took this oil from the very pan in which paneer is fried.
Add all the Whole spices i.e. green cardamoms, black cardamom, cloves, black pepper corns, dry red chillies, bay leaf and javitri.
Saute for couple of minutes on low flame.
Add onion and cook it till it begins to turn golden brown.
Add ginger garlic paste and cook it till changes colour.
Time to add tomatoes and salt.
Cover the pan with a lid and let tomatoes cook for about 10 minutes. When oil separates from tomatoes, it's a sign that tomatoes are cooked.
Till the time tomatoes are cooking, take curd in a bowl and add all ground spices except Garam masala and whisk everything well. The ground masala we are adding here is red chilli powder, haldi, coriander powder, cumin powder & netmeg.
Pour this curd mixture into kadai and stir immediately otherwise curd may curdle.
Let curd cook for about 5 minutes or until oil is seen separating.
Add water to adjust the consistency. We added 1/4 cup but you may add less or more depending upon the thickness of gravy you prefer.
Let water come to boil.
Add fried paneer cubes, kasuri methi, garam masala and sugar. Mix.
Let paneer simmer in gravy with lid on for 2 minutes on low flame.
Your paneer changezi is ready. Enjoy with naan, paratha or fulka.