In a bowl mix milk and custard powder to form a paste.
In another bowl sieve the maida and baking powder.
Add powdered sugar, cardomon/elaichi pd and mix well.
Add milk and custard pd mixture and mix nicely with your fingers.
Then add melted ghee little by little kneading it to a dough consistency(it might not be a perfect dough). Quantity of ghee required may be slightly more or less, adjust accordingly.
Roll small balls out of them and slightly press them on the top with fork not much.
Grease the baking tray with little ghee and place the cookies on the tray.
Pre-heat oven to 180 degree celcius and bake them for 25-30 mins.Check after 20 min cookies will turn light brown in colour.
Wash green chillies, pat dry and keeping the top intact give a slit in the middle without breaking them in to halves remove seeds with the help of spoon or fingers.
Apply little salt and rub tamarind pulp to the chillies and keep aside for 10-15 mins.
In a bowl, take smashed potatoes, add red chilli pd, jeera pd, coriander pd,coriander leaves and little salt.Mix nicely and keep aside.
Stuff each chillies with the above potato mixture. With the help of your fingers push the stuffing and seal the chillies tightly and keep aside.
For the batter in a bowl take besan, rice flour,add red chilli pd, haldi pd, ajwain and little salt, mix it.Add water little by little and make a thick batter. To check insert your finger and see if the batter is coated well without dropping.
Heat oil in a kadai.
Take one stuffed chilli and dip into the batter, make sure that batter is coated evenly.
Gently slide each chilli into hot oil and fry till golden brown in colour.
Grind together pudina, coriander leaves, garlic, ginger and green chilli to a fine thick paste.
In a bowl take curd, add red chilli pd, haldi pd, coriander pd, garam masala/chicken masala, salt and mix to form a paste.
Marinate chicken with the above 2 paste(green paste and curd masala mix paste) and keep aside for 1 hour.
Soak rice for 1/2 an hour.
Heat oil in a pressure cooker.
Add onions and fry till brown in colour.
Add tomatoes and fry for few seconds till soft.
Add Everest biryani masala.Mix.
Add marinated chicken, mix well and fry for 10-12 mins. Cook till the water released is dried up.
Strain water and add soaked rice. Mix nicely.
Add hot water (double the quantity of rice).Mix well.
Add salt as required(Marinated chicken already has salt).
Close the pressure cooker lid and take 4 whistles.
Once cooled mix and serve with Raita.
Note: If the chicken has released more water than reduce the quantity of hot water by 1/2 cup. You can also do it in a pan/kadai. Stir occassionally and check till rice is cooked.