2-3hrs is not possible for Tirumala exp,it can be cut to 13hrs on both sides. Vskp 1500 BZA 2120/30 ) Godavari takes 6 15mins and Tirumala had 3 more stops) Gudur 200 ( Guwahati Southbound trains overtake leaving Vskp at 1545) TPTY 400. Return 2030 Gudur 2220 BZA 240/50 Vskp 930.