Tamil Nadu is an integral part of India and its heritage should be celebrated not through divisive sentiments, but through scientific evidence-based knowledge, Union Minister for Tourism and Culture Gajendra Singh Shekhawat said on Wednesday.

He also reiterated that further scientific studies were needed to validate reports submitted to the Archaeological Survey of India (ASI) by archaeologist Amarnath Ramakrishna, who headed two phases of excavations at Keeladi in Sivaganga district.