Seshachalam Hills

The Seshachalam Hills are hilly ranges part of the Eastern Ghats in southern Andhra Pradesh state, in southeastern India.

• The ranges were formed during the Precambrian era (3.8 billion to 540 million years ago). 
• Minerals contained in these hills include sandstone and shale inter bedded with limestone.
• The ranges are bounded by the Rayalaseema uplands to the west and northwest, and the Nandyal Valley to the north.

• Tirupati, a major pilgrimage town is located in the hills. 
• The hills contain seven peaks namely, Anjanadri, Garudadri, Narayanadri, Neeladri, Seshadri, Venkatadri and Vrishabhadri, the highest at about 600 m (2,000 ft) above sea level.
• The seven peaks are said to represent the seven hoods of Lord Adisesha, the king of serpents in Hindu mythology.
  • The Srivenkateshwara National Park is also located in these ranges.
• The famous Natural Arch, Tirumala Hills is also a part of Seshachalam Hills, which dates back to the period in between Middle and Upper Proterozoic Eon. 
• In 2010 it was designated as a Biosphere Reserve. It has large reserves of Red Sandal wood which is used in medicines, soaps ,spiritual rituals.