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The pin code of Chengalpattu, Kanchipuram, Tamil Nadu, IN is 603003. As per the first 2 digits of this Indian postal code, 603003 pin code belongs to post circle Tamil Nadu. Last 3 digits of the code are assigned to the Vallam Sub Post Office. Vallam S.O pin code officially comes under Chengalpattu division, and Chennai Region region.
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