Thats y they made UBL as HQ of SWR thinking of future growth of SBC & MYS and also both are geographically located in such a place where they cant help to grow other Karnataka places as running all trains outside KA right after serving MYS,SBC,bangarpet,yelhanka.Even IRI members do imaginary trains from MYS to other state cities most form Outside KA route for Electrified and speed routes compared to Slow un electrified routes of KA..Hope in future Other parts of KA also get developed wiht better fast train connectivity trains. SWR have rakes and coaches to run trains to inter state cities but dont have rakes to serve Karnataka cities.