Tegachaya is one of the stations on Nankai Railway. It is located in southern part of Osaka and a few stations away from Namba.
Tengachaya is not a mega terminal station but this station is very convenient transfer point of Nankai Railway and Osaka Subway Sakaisuji line. You will change trains at this station from Kansai airport to some locations in downtown Osaka. And also Subway Sakaisuji line goes through Hankyu Railway Kyoto and Senri lines. You also may use this subway line to get some places on Hankyu Railway lines.