where my college brouchures stored.?
See you can see the download section of your smart phone in both the internal and the external storage for the brochures.
Now if you are using website and you are downloading it then go check the downloads folder of your PC usually stored in C drive for most pc's. If you can't find it there then check your registered email. Many times the brochures are sent via emails.
I hope this answer helps. All the very best for your future endeavors!