Should i be worried of these permissions from an app? I was going to download an app ( not giving its proper name because there are many other apps who wants same permissions) but when i was looking for what  'app permissions' it needed. I saw permissions 'camera' , 'identity' , 'send sticky broadcast' and 'request install packages'.

Why an app actually needed to take permission of camera when there is no need of camera anyhow within the app ?
And what are those settings permissions under other section ?
From what I have found, a Sticky Broadcast is a broadcast from an application that stays hanging around after it has been dealt with. It helps for things like battery level. I found this here.

As for Request Install Packages, it


  Allows an application to request installing packages


Source: Android Developers

As for why an app would need permissions to something that it seems like it has no business using, there could be a few explanations. I am a developer and can say that there might be something in the API for Camera that is used, but the actual camera is not. Without know what app you are wanting, one could not say definitively.