Hi Aneesh,
Please read through the smart search documentation for all of the necessary information:
Smart Search OverviewYou can install Kentico
CMS Corporate site ASPX web site from pre-defined web templates where are already prepared ASPX page templates were smart search web parts and controls are used.
You can also go through the Kentico ASPX Tutorial and there is an approach how to allow full-text search in your website:
ASPX Search TutorialBest Regards,
Jan Hermann