If SR can run this train, Chennai Shimoga and Shimoga Renigunta can be run daily. I suggest Chennai dep 1600 Shimoga arrival 0445. Shimoga dep 0630 Renigunta arr 1900 and further to Chennai arrival 2200. Another rake Chennai dep 1830 Renigunta dep 2145 and Shimoga arrival 1200. Shimoga to Chennai via KJM as per existing TT.
Advantage is that Ballari Chitradurga Shimoga get daily trains to Tirupati as well as Chennai.
Opinion please.