Trichy-Tanjore Diocese of the Church of South India

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The CSI Tiruchirappalli Thanjavur Diocese (தென்னிந்திய திருச்சபை, திருச்சிராப்பள்ளி-தஞ்சாவூர் பேராயம்) is a diocese of Church of South India in Tamil Nadu state of India. The diocese is one among the 24 dioceses of Church of South India and was one of the first 14 dioceses to be formed at the inaugural of the Church of South India in 1947.