Yay Chicks! :
Do you have anyone in your area who is also raising chickens?  You might find what they are feeding theirs and what is more locally available.  If you are feeding them earthworms (or any kind of food that require "teeth"), they will need a little grit (tiny sharp stones or sand) with which to grind the food in their gizzard.  You can add a fully cooked egg and/or a little yogurt if that is available.  I'm not sure if there is anyone else on the forum from Pakistan.  We tend to think in terms of "oh, I can just get that at the local feed store", but if one is not available, you have to be more creative.  And you will notice that people are speaking of temperature in terms of Farenheit, rather than Celcius.  That can get confusing as well 
  I do hope we can help you with your birds, however.
Have you also read "Raising Chickens 101?"  There is a link at the "Learning Center" at the top of the page.  That will give you some of the basics.
Unfortunately there is no one who is raising chickens near me :s
Well I just give them worms for one day... I also feeding them boiled egg ... they like it a lot ... 
Yogurt is available and can be found easily ... are you suggesting to put a little yogurt in a boiled egg...? Do I have to mash it like a paste?
Yes i noticed people are speaking of temperature in Fahrenheit ... i will be careful with that next time 
I really appreciate you guys .... BYC seems to be very helpful for newbies ... Thnx to you guys and BYC as well 
I will check that learning center for sure .... Thnx for the help Yay Chicks