The 22643 / 22644 Ernakulam–Patna Superfast Express (via Asansol) is an express train belonging to Indian Railways southern zone that runs between Ernakulam Junction and Patna Junction in India.
[1] Varanasi-Tirupati Express was extended (on one day) to/from Cochin with effect from 1-11-1989 [2] It operates as train number 22643 from Ernakulam Junction to Patna Junction and as train number 22644 in the reverse direction, serving the states of Tamil Nadu, Kerala, Andhra Pradesh, Odisha, West Bengal, Jharkhand and Bihar.
It is maintained at Ernakulam (ERMCD) and uses 4 rakes alongside its RSA.
The train has standard LHB rakes with a maximum speed of 130 km/h.
The train consists of 22 coaches.