Chennai GPO 600 001
Anna Road GPO 600 002
Park Town 600 003
Mylapore 600 004
Triplicane 600 005
Greams Road 600 006
Vepery 600 007
Egmore 600 008
Fort St George 600 009
Kilpauk 600 010
Perambur 600 011
PeramburBar 600 012
Royapuram 600 013
Royapettah 600 014
Saidapet 600 015
St. Thomas 600 016
Thearayanagar 600 017
Teynampet 600 018
Tiruvottiyur 600 019
Adyar 600 020
Washermenpet 600 021
Raj Bhavan 600 022
Ayanavaram 600 023
Kodambakkam 600 024
Engineering College 600 025
Vadapalani 600 026
Meenambakhm 600 027
Raja Annamalaipuram 600 028
Aminjikarai 600 029
Shenoynagar 600 030
Chetput HO 600 031
Industrial Estate Guindy 600 032
West Mambalam 600 033
Nungambakkam 600 034
Nandanam 600 035
Indian Institute of Technology 600 036
Officers' Training School 600037
ICF Colony 600038
Vysarpadi 600 039
Annanagar 600 040
Thiruvanmiyur 600 041
Velacheri 600 042
Pallavaram 600 043
Chromepet 600 044
Tambaram HO 600 045
Tambaram IAF 600 046
Tambaram Sanato 600 047
Vandalur 600 048
Villivakkam 600 049
Padi 600 050
Milk Colony 600 051
Red Hills 600 052
Ambatur HO 600 053
Avadi Camp HO 600 054
Avadi IAF 600 055
Poonamallee 600 056
Ennore Thermal 600 057
Indusrial Estate 600 058
Tambaram East 600 059
Madhavaram 600 060
Nanganallur 600 061
Satyamurthinagar 600 062
Srinivasanagar 600 063
Chitlapakkam 600 064
CRP Gmp Avadi 600 065
Pozhal 600 066
Sholavaram 600 067
Manali 600 068
Kunrathur(Kanchi Dt 600 069
Anakaputhur 600 070
Kamarajanagar 600 071
Pattabiram 600 072
Selaiyur 600 073
Pozhichalur 600 074
Pammal 600 075
Korattur RS 600 076
Elruverkadu 600 077
K.K. Nagar 600 078
Sowcarpet 600 079
Korattur 600 080
Tondiarpet 600 081
Jawahamagar 600 082
AshokNagar 600 083
Flowers Road 600 084
Kottupuram 600 085
Gopalapuram 600 086
Alwarthirunagar 600 087
Adambakkam 600 088
Nandambakkam 600 089
Besantnagar 600 090
Madipakkam 600 091
Virugambakkam 600 092
Saligramam 600 093
Choolaimedu 600 094
Jaffarkhanpet 600 095
Perungudi 600 096
Ekkaduthangal 600 097
SIDCO Estate 600 098
Kolathur/CPT 600 099
Mrusoolam 600 100
Annananagar W. Ext. 600 101
Annanagar E. Ext. 600 102
Manali New Town 600 103
High Court Buildings 600 104
Commander-in-Chief 600 105
Arumbakkam 600 106
Koyambedu 600 107
Broadway 600 108
Railway Car Shed 600 109
Ponniammanmedu 600 110
Ayappannagar 600 111
Choolai 600 112
Tharamani 600 113
Pazhavanthangal 600 114
Madras University 600 115
Porur 600 116
Coimbatore 641001
Erode 638001
Karur 639001
Thoothukudi 628002
Aragalur 636101
Madurai 625001
Salem 636007
Viridhubagar 626001
Kanchipuram (Big Kanchipuram) 631501
Kanchipuram (Little Kanchipuram) 631502, 631503
Thalaivasal 636112
Sivakasi 626189
Sivakasi West 626124
A.Lakshmiapuram (Virudhunagar Dt) 626127
Thanjavur District 614207
Tholayalampalay 641114
Tirupr 641604
Pollikalipalayam 641665
Karaikudi 630001
Cuddalore 607106
Nellikuppam 607105
Palladam 641664