Thennal is an city in Vellore District, Tamil Nadu, India. Chennai, Vellore, Melvenbakkam, Kilvenbakkam, Nelvoy, Punnai, Uliyanallur, Thennal, Perapperi, Agavalam, Vettangulam, Thuraiyur, Velianallur, Reddivalam, Kilvenkatapuram, Panapakkam, Asanallikuppam, Nelvoy, Thirumalpur, Pudhukandigai, Thandalam, Olakkalpattu are the nearby cities to Thennal.