I finally figured out how to install Anydesk/Team Viewer in Raspberry Pi running Ubuntu Mate. All you need to do is just add other architecture like "armhf" or "i 386" both should work, well I had download the armhf.deb file so I add the armhf cross platform to the repository and updated it, then it is standard installation process just by clicking on the downloaded file and install it.
In order to add cross platform repository open terminal and I entered
" sudo dpkg --add-architecture armhf " for armhf and press enter
And for i386 type " sudo dpkg --add-architecture i386 " then press enter
After this you have to update the repository by typing
"sudo apt-get update" followed by
"sudo apt-get upgrade"
Then you can easily install any packages or software you wanted to which are supported.
Correct me if I miss anything or am I doing it in the wrong way since I am new to linux