I am running my project on eclipse and using Tomcat server and postgres database. So, how to install SuiteCRM on my project?
SuiteCRM doesn’t run on Postgres. Also I don’t know about Tomcat, although web servers are easier to make them work than databases (for example many people run on Nginx).
Official requirements are here:
https://docs.suitecrm.com/admin/compatibility-matrix/
Plus, you don’t install SuiteCRM on an IDE (Eclipse), you simply install SuiteCRM (with XDEBUG enabled in your PHP) and connect Eclipse to it as a debugger.