As Mentioned by Coromandel on both the routes PKD DMM via SSPN and PKD DMM via Nagasamudram there are very less constraints and not much traffic is available on these two lines except only on specific timings and traffic can be easily handled there. There are no such Dedicated trains been alloted to run on which line. The only bottleneck is SCR where the current doubling project is going on between Gooty Dharmavaram which must be Completed soon for trains to run on time without delay. The new target date given for Gooty Dharmavaram Doubling project to complete is by End of October 2022 Or by year end.