Dena Bank is in Follwing Districts in Tamil Nadu State

Chennai
Coimbatore
Coimbotore
Cuddalore
Dindigul
Erode
Kancheepuram
Kanniyakumari
Krishnagiri
Madurai
Nilgiris
Salem
Sivaganga
Thanjavur
Thiruvallur
Tiruchiorappalli
Tirunelvali
Tiruvallur
Vellore