Regarding Gtl bypass, bypass line is there but SCR has to look what facilities/passenger amenities are available in the satellite station of guntakal west ( at least water filling facility should be there) before bypassing passenger trains.
in this train's route various sanctions like bpq-sc, durg - gondia , bsp -durg ( middle - line only) are 130 mps sanctioned. Now after getting lhb rakes, this one can automatically avail that speed upgradation. However, corresponding change in TT will take time to reflect