PIN code 603401

Post offices (6)

• Andarkuppam Branch Post Office

  Branch Post Office · delivery · Chengalpattu Division · Map

• Kadukkalur Branch Post Office

  Branch Post Office · delivery · Chengalpattu Division · Map

• Puthirankottai Branch Post Office

  Branch Post Office · delivery · Chengalpattu Division · Map

• Vannianallur Branch Post Office

  Branch Post Office · delivery · Chengalpattu Division · Map

• Velur Branch Post Office

  Branch Post Office · delivery · Chengalpattu Division · Map

• Chunampet Post Office

  PO · delivery · Chengalpattu Division · Map

Source: Department of Posts, All India Pincode Directory (data.gov.in, GODL-India), as of 3 Oct 2025.

16 villages use this PIN code

• Chunampet · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 9,024
• Arasur · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 3,779
• Panayadivakkam · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 2,830
• Illedu · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 2,688
• Puthirankottai · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 1,893
• Pondur · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 1,557
• Agaram · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 1,390
• Kadukalur · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 1,204
• Pudupattu · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 1,026
• Othivilagam · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 910
• Vannianallur · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 737
• Andarkuppam · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 470
• Pudupattu · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 443
• Vellankondagaram · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 433
• Voyalur · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 368
• Vilambattu · Taluka: Cheyyur, Chengalpattu, Tamil Nadu · Pop. 192

Bank branches (1)

• Indian Overseas Bank, Chunampet · IFSC IOBA0000260

Source: Reserve Bank of India IFSC list. Banks with this PIN code in their listed address.