Hello Sunny,
Welcome to the community.
VMtools can be directly installed or upgrade from the vm itself. Just Select the vm> right click > Guest> install/upgrade vm tools installation and it will automatically install iin your vmtools.
And vmtools are absolutely free.
All the best,
Please consider marking this answer "correct" or "helpful" if you found it useful.
Anjani Kumar
VMware vExpert 2014 . Infrastructure Specialist.
Email ID : Anjani.kumar@vmwareminds.com
Website : http://www.Vmwareminds.com