| Districts Old Name | New Name |
| Alleppey | Alappuzha |
| Calicut | Kozhikode |
| Cannanore | Kannur |
| Palghat | Palakkad |
| Quilon | Kollam |
| Trichur | Thrissur |
| Trivandrum | Thiruvananthapuram |
| Cities and Other Places | |
|---|---|
| Old Name | New Name |
| Tellichery | Thalasseri |
| Badagara | Vadakara |
| Parur | Paravoor |
| Alwaye | Aluva |
| Cochin | Kochi |
| Devicolam | Devikulam |
| Changanacherry | Changanasseri |
| Chirayinkil | Chirayinkizhu |
| Sherthalai | Cherthala |
| Choughat | Chavakkad |
| Cranganore (Ancient Muzuris) | Kodungallur |
| Mannarghat | Mannarkkad |
| Mananthody | Mananthavadi |
| Sulthan's Battery | Sulthanbatheri |
| Diamper | Udayamperoor |
