Tamilnadu Forts

There were so many forts built all over tamilnadu during monarchy periods.  But those are not available now. Here is the list of forts available in Tamilnadu present time. If I have missed any fort, please feel free to inform me in comment section.

• Adiyaman Kottai - Dharmapuri
• Dindigul Kottai -Dindigul
• Alamparai Kottai - Mamallapuram
• Udayagiri Kottai - Kanyakumari
• Vattakottai - Kanyakumari
• Syed Batsha Kottai, Krishnagiri
• Hosur Kottai, Krishnagiri
• Rayakotta, Hosur
• Dutchu Kottai, Nagapattinam
• Namakkal Durkkam Kottai, Namakkal
• Ranchan Kudi kottai, Perambalur
• Aranthangi, Pudukottai
• Tirumayam, Pudukottai
• Sangagiri Kottai, Salem
• Kottaimedu, Kamudi, Ramanathapuram
• Malai Kottai Trichy
• Umayan Kottai, Trichy
• Vellore Kottai, Vellore
• Kalasha Giri, Ambur, Vellore
• Chenji Kottai, Villupuram
• Rajagiri Malaikottai, Villupuram
• Krishnagiri Malai Kottai, Villupuram