The 12669 / 12670 Ganga Kaveri Express is a bi-weekly Express train service operated by Indian Railways, connecting Chennai in Southern India to Chhapra in Bihar. Inaugurated on 16 February 1977 by Kamalpati Tripathi, between Madras (now Chennai) and Varanasi, was terminating at Chennai Beach Station, from where MG Ganga Kaveri Express used to run to Rameswaram through the Kaveri river basin. From May 2, 2022 it will run with the new highly refurbished LHB coach.