http://www.tirupatidarshan.org/services/

Though known separately as Seshadri, Garudadri, Anjanadri, Narayanadri, Neeladri, Vrishabhadri and Venkatadri, the Seven Hills are treated as one single unit. Apart from the main temple of Lord Sri Venkateswara on the Venkatadri Hill, there are many places that are worth visiting on the uphill.. you want to more information check it here: http://www.tirupatidarshan.org/3-nights-4-days-tirupati-tour-package/