Northeast bound trains can be diverted via cnb-ddu-gaya-jmp route
Some koaa/bgp trains from pnbe can be diverted via pnbe-behs-shk-kiul route (to avoid events like barhiya or sadisopur)
Trains from gkp/mfp/rxl to gaya/rnc/tata can be run via fut-ipr-tia or bkp-rgd-tia route. Fut-ipr-tia has a lot of scope