Correction again Arkchat. The last line should read "Again, it is used by 12339 ---- 17.20."
If this RSA is correct, then the rake os 12340 DN Coalfield Ecpress must be operating as 12341 Agniveena Exp at 18.20 hrs. Pls check this if you can. I know for sure that these 3 trains have a rather complicated RSA but I cannot remember the details exactly. Sorry for the fault-finding.