Chennai, short form of Chennapattanam, initially called as Madras, short form of Madrasapattinam. It was renamed as Chennai during the year of 1996 by the State Government of Tamil Nadu. Chennai is consider as the Gateway of South India, as it play a important role to connect south Indian states to rest parts of India Chennai is the one of economically faster growing cities (4th largest) in India which ranked 36th largest metropolis in the world with several large industries like automobiles, software technologies, hardware industries, healthcare etc.
“Vizag,” as Visakhapatnam is called, is the second largest city of Andhra Pradesh and one of the fastest-growing cities in Asia. With a busy port and a natural harbor, it is home to a shipbuilding yard, an oil refinery, a steel plant and other major industries. Visakhapatnam is named after God Vaishaka. The city is a port city, located along the shores of Bay of Bengal and is headquarters to the Eastern Naval Command of the Indian Navy. Although considered to be an industrial city, Vizag has a rich and vibrant culture and heritage. The city was part of the ancient Kalinga Empire and was ruled by renowned kings, such as Ashoka and Krishnadeva Raya. During the 18th century, the city was a Dutch colony.
Nellore is one of the most important cities and municipal corporations in the state of Andhra Pradesh situated on the banks of the Penneru River. It is also the sixth most populous city in this state. Nellore city is the administrative headquarters of Sri Potti Sri Ramulu Nellore district. Hyderabad, the state capital of Andhra Pradesh, is around 450 kilometer away from Nellore.