This is a list of Monuments of National Importance (ASI) as officially recognized by and available through the website of the Archaeological Survey of India in the Indian state of Tamil Nadu. 403 Monuments of National Importance have been recognized by the ASI in Chennai circle of Tamil Nadu.[1] Due to the high amount of ASI-recognized monuments in the Chennai circle, the monuments in the districts Kanchipuram and Pudukkottai are put in a separate list from the rest of the circle.
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