The regional representative for Russia is Evgeny Shandarov (firstname.lastname@example.org). RoboCup defines the region by your residence. If you live in Russia, you have to go through the Russian system.
Also you can find the list of regional representatives at RoboCupJunior.org under Community page.
RoboCupJunior is a competition for students up to 19 year old. So it is technically not for University students. You might have to contact the Major leagues to find out their process.