The correct option is Arcot.
Explanation
Chengam is a town of significant historical and archaeological importance located in the Tiruvannamalai district of Tamil Nadu. Geographically and historically, this area falls under the Arcot region (specifically the former North Arcot district).
Detailed Analysis:
- Region Identification: Chengam is situated in the northern part of Tamil Nadu. Historically, this territory was part of the Tondaimandalam region and later the Arcot district under the British and the Nawabs of Arcot. It is distinct from the Kaveri delta region (Thanjavur), the Pandya heartland (Madurai), or the central region (Tiruchirappalli).
- Art Historical Significance: Chengam is renowned in Indian art history primarily for the discovery of numerous Hero Stones (Nadukal) bearing inscriptions, many dating back to the Pallava period. These stones provide crucial evidence regarding the socio-political history and art of the region.
- Temple Architecture: The Sri Krishna Temple (often referred to as the Venugopala Parthasarathy Temple) in Chengam is a notable monument in this region, reflecting the architectural and sculptural traditions prevalent in the Arcot region during the Nayak and Vijayanagara periods.
Key Takeaway:
The Sri Krishna temple at Chengam is located in the Arcot region (Tiruvannamalai district). The town is historically famous for its ancient Hero Stones (Nadukal) and inscriptions.