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The pin code of Ponneri, Tiruvallur, Tamil Nadu, IN is 600057. As per the first 2 digits of this Indian postal code, 600057 pin code belongs to post circle Tamil Nadu. Last 3 digits of the code are assigned to the Ennore Thermal Station Sub Post Office. Ennore Thermal Station S.O pin code officially comes under Tambaram division, and Chennai Region region.
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