You need to learn how to use Google.
http://www.google.co.uk/search?q=electronic+simulation+software&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-GBfficial&client=firefox-a
i have the simulation software named national instruments multisim work benh but there is no student version for it will you have any knowledge about the student simulation softwares whiuch are provided to the student