Hey, you are kiara, right? I am Jui. You are from India, that's great! But which country?
Um...I am not sure about your question. You can go to your profile and then there is a option 'Edit Profile' and then if you upload a pic in your gallery, if have to click on it and there will be a option, 'Make your icon'

PS: If you're some one else, I am deeply sorry. Posted over a year ago