The stretch from GNT - GTL lacks proper connectivity to many parts of the country and unfortunately even within the state of AP. Thanks to being shortest route of SBC from eastern india, a few express are giving HWH- SBC connection. Though good intra state connectivity seems promising in near future with one or two ONTs and ICEs , Long distance trains through this area need to be improved.
To start with thoughts shall be given off to start LTT express from GNT via NDL/GTL and BAY/GDG/BJP/SUR as these areas dsnt have one.