Location of App's "USB Storage app" and "SD card"? From the below screenshot, can anyone please tell the location(or rather path) of the "USB storage app" and "SD card" that an android application points to?


Screenshot

I write a text file in the /mnt/sdcard folder but I don't see any changes in the SD card parameter.
Your screenshot is information regarding a specific app on an Android device and how much space that app uses. Saving a text file in /mnt/sdcard will not have an effect on the numbers you see here. Depending on your phone and what version you have, you can usually go to Settings &gt; Storage to see you memory usage.