Very useful piece of information. This is off topic, so please excuse me in this thread: Looking at the railway map of Penukonda-Yelahanka line, I see that it passes close to Kolar at some point. Now, Yelhanka-Kolar is already BG and Kolar is connected to Bangarapet on SBC-MAS section.
If railways can branch off a line from Penukonda-Yelahanka section to Kolar, then trains can get a new link towards Chennai(Trains coming from North i.e. Dharmavaram side)