Proposal for Hiring of Escorting Skilled out- sourced staff for en- route Trouble shooting, operation, Record Keeping attachment and detachment of HOG coupling in the trains originating from KOAA Station for any type of Special Trains ( SG & LHB ) for one ( 01 ) year. ( Except International trains like 13109/ 13110 ( KOAA- DHAKA ) Moitri Exp. & ( KOAA- KHULNA ) Bandhan Express.