If this TQWL gets confirmed travel in it.. Problem is tomorrow's Mail (12839) from SLO,train has to start 23:55 from HWH tonight but its pairing rake Coromandel which had to reach 10:40 AM to SHM today is still nearly 300 plus Kms away and is running 11 Hrs delayed so Mail will be surely delayed atleast by 5-6 Hrs from HWH you will get full refund file TDR after charting saying delayed by 3 Hrs plus from Source.
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Alternate option from CCT if Seshadri doesn't CNF is Circar which has 3AC still...
more... in RAC has Tatkal+Premium Tatkal availability runs mostly on time to Egmore just quickly rush from Egmore to Central atleast 1 Hr 30 mins buffer in between should be enough for Circar+DD combo. Else keep eye on Navjeevan & Grand Trunk availability from BZA to MAS if you get one ticket then from CCT to BZA take Circar have dinner at BZA board either GT or Navjeevan and then from MAS take DD.