Hello Prabir,
after unpacking the zip file, you can save the whole program structure on C:\\.
You have to check if the systel.ini file is under the folder config. Otherwise download it and put it there. Besides check the environmental variables $PATH, if there exists the bin folder of Telemac and of Pearl. And check if the variable $SYSTELCFG exists.
You can use a tutorial case for trying to run it on Fudaa. Get to the Cas File and start the simulation.
These are the hints I know, hope it helps.
Andrea