The pin code of Chennai G.P.O. , Chennai, Tamil nadu is 600001. The post office Chennai G.P.O. is located in the district Chennai, Tamil nadu. The first two digit of pin code denotes 60, which is listed in Tamil nadu.
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What is Pin Code?
The Postal Index Number (PIN) or PIN Code is a 6 digit code of Post Office numbering used by India Post. The PIN was introduced on August 15, 1972. The PINcode is 6 digits long. First digit reflects region, second the sub-region, third the sorting district, and last three represent the post office code.