Tripura Sundari Express runs with an LHB Rake and has a total of 22 coaches. It has 4 second seating unreserved coaches, 6 sleeper coaches, 1 pantry car coach, 4 third ac coaches, 2 second ac coaches and 1 first ac coach. The engine of the train reverses at Lumding Jn station. The full coach composition is:
Engine--EOG--GS--GS--GS--GS--S1--S2--S3--S4--S5--S6--PC--M1--M2--B1--B2--B3--B4--A1--A2--H1--EOG