- Kothamangalam S.O (Ernakulam)
Pincode: 686691, Sub Office(Delivery)
- Kottappady B.O
Pincode: 686692, Branch Office(Delivery)
- Kottuvally B.O
Pincode: 683519, Branch Office(Non Delivery)
- Kozhipilly B.O
Pincode: 686691, Branch Office(Delivery)
- Kulayettikara B.O
Pincode: 682315, Branch Office(Delivery)
- Kumarapuram S.O (Ernakulam)
Pincode: 683565, Sub Office(Delivery)
- Kumbalam B.O
Pincode: 682506, Branch Office(Delivery)
- Kumbalangi S.O
Pincode: 682007, Sub Office(Delivery)
- Kumbalangi South B.O
Pincode: 682007, Branch Office(Delivery)
- Kunjithai B.O
Pincode: 683522, Branch Office(Delivery)
- Kunnackal S.O
Pincode: 682316, Sub Office(Delivery)
- Kunnukara B.O
Pincode: 683578, Branch Office(Delivery)
- Kureekad B.O
Pincode: 682305, Branch Office(Delivery)
- Kurumassery S.O
Pincode: 683579, Sub Office(Delivery)
- Kuruppampady S.O
Pincode: 683545, Sub Office(Delivery)
- Kusumagiri B.O
Pincode: 682030, Branch Office(Delivery)
- Kuthiathode(EKM) B.O
Pincode: 683594, Branch Office(Delivery)
- Kuthukuzhy B.O
Pincode: 686691, Branch Office(Delivery)
- Kuttampuzha B.O
Pincode: 686681, Branch Office(Delivery)
- Kuttikkattukara B.O
Pincode: 683501, Branch Office(Delivery)
- Kuzhiyara B.O
Pincode: 682312, Branch Office(Delivery)
- Madakkathanam B.O
Pincode: 686670, Branch Office(Delivery)
- Malayattoor S.O
Pincode: 683587, Sub Office(Delivery)
- Malayidumthuruth B.O
Pincode: 683561, Branch Office(Delivery)
- Maliankara B.O
Pincode: 683516, Branch Office(Delivery)
- Malipara B.O
Pincode: 686681, Branch Office(Delivery)
- Malipuram S.O
Pincode: 682511, Sub Office(Delivery)
- Mamala B.O
Pincode: 682305, Branch Office(Delivery)
- Mamalakandom B.O
Pincode: 686681, Branch Office(Delivery)
- Mamalassery B.O
Pincode: 686663, Branch Office(Delivery)
- Manary B.O
Pincode: 686673, Branch Office(Delivery)
- Manickamangalam B.O
Pincode: 683574, Branch Office(Delivery)
- Manidu B.O
Pincode: 686664, Branch Office(Delivery)
- Manikinar B.O
Pincode: 686693, Branch Office(Delivery)
- Manjapra S.O
Pincode: 683581, Sub Office(Delivery)
- Manjummel B.O
Pincode: 683501, Branch Office(Delivery)
- Mannam Paravur S.O
Pincode: 683520, Sub Office(Delivery)
- Mannathur B.O
Pincode: 686667, Branch Office(Delivery)
- Maradu S.O
Pincode: 682304, Sub Office(Delivery)
- Marady East B.O
Pincode: 686673, Branch Office(Delivery)
- Marampally B.O
Pincode: 683105, Branch Office(Delivery)
- Marika B.O
Pincode: 686662, Branch Office(Delivery)
- Marithazham B.O
Pincode: 682315, Branch Office(Delivery)
- Matsyapuri S.O
Pincode: 682029, Sub Office(Delivery)
- Mattancherry Jetty S.O
Pincode: 682002, Sub Office(Non Delivery)
- Mattancherry S.O
Pincode: 682002, Sub Office(Delivery)
- Mattancherry Town S.O
Pincode: 682002, Sub Office(Non Delivery)
- Mattoor B.O
Pincode: 683574, Branch Office(Non Delivery)
- Mazhuvannoor B.O
Pincode: 686669, Branch Office(Delivery)
- Mazhuvannoor South B.O
Pincode: 686669, Branch Office(Delivery)