The Puratchi Thalaivar Dr. M. G. Ramachandran Central Railway Station–Thiruvananthapuram Premium AC Superfast Express (train number 22207 and 22208, formerly Chennai–Thiruvananthapuram AC Duronto Express[1][2]) is a train of the Indian Railways, announced in the 2011–12 Railway Budget.

It connects Chennai, Tamil Nadu to Thiruvananthapuram, Kerala.

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