This page has all the Handgun Permit Laws you can stand to look at, just follow the links beside the headers for more information.  

Tennessee Handgun Permit LInk - https://www.tn.gov/safety/article/handgunmain

US Handgun State Laws - http://www.handgunlaw.us/ 

Tenessee Code Annotated - https://www.lexisnexis.com/hottopics/tncode/