Tirupati is in Chittoor district of Andhra Pradesh, India. It is most famous for its Sri Venkateswara Temple dedicated to Vishnu, also known as Balaji in North Indian and Govinda in South Indian. The temple is located on top of Tirumala hills, while the town is located on the foothills. The Tirumala hill has seven peaks ("Sapthagiri"), said to represent the seven hoods of Adisesha, the serpent under whose hoods Vishnu resides in Vaikuntha.
TTD information Centres :
Tirumala and Tirupati: 91-877-2277777
Hyderabad : 91-40-23260590
New Delhi, Mumbai, Kolkata, Chennai, Bangalore, Hyderabad, Pondicherry, Visakhapatnam, Vellore and other district Head Quarters in AP.
Hyderabad Office Timings: 9AM to 4PM on weekdays, 9AM to 7PM on weekends, Tuesday Closed. Lunch From 1PM to 2PM.
Tirupati is situated in the southern part of Andhra Pradesh. Tirumala is located in the eastern ghats, a mountain range that runs along the south-eastern India. The temple of Lord Venkateswara is located on the seventh peak Venkatachala. The nearby town called Tiruchanoor (also known as Alamelu-Mangapuram) is covered in this page too.
Lord Venkateswara is also called the Lord of the Seven Hills. This temple has acquired a special sanctity in the Hindu religion. The benefits that accrue by a pilgrimage to this holy town is mentioned in the Vedas and Puranas. Hindus all over the world believe that in Kali Yuga its possible to attain mukti by worshiping Lord Venkateswara. Around 50,000 pilgrims visit the temple every day. The Pallava, Chola, Pandaya and Vijayanagar rulers were known to give funds and jewels as temple offerings.
Before you start for Tirumala, it is recommended that you:
Offer your prayers to your kuladeiva (family deity).
Visit the temple of Lord Ganesha to ensure that the trip is free of obstacles.
Visit Tiruchanoor and offer your prayers to Goddess Padmavathi Ammavaru.
Visit Sri Varahaswami Temple on the northern bank of Swami Pushkarini at Tirumala.
And finally, offer your prayers to Lord Venkateswara.
Indian Airlines  operates daily flights between Hyderabad, New Delhi and Tirupati. Air Deccan has a daily flight between Hyderabad, Bangalore, Vizag and Tirupati.
From Chennai airport to Tirupati: Use this route if you have little luggage and are comfortable walking for short distances (and want to try a cheaper, alternative route to Chennai Central). From Chennai airport, you can walk over to the local suburban railway station (Tirusulam, about 5 minutes away) and take a local train to Park Station (Rs. 7, about 30 minutes). Chennai Central is a 5-10 minute walk from Park Station. From Chennai Central, there are frequent long distance train services to Tirupati.
Tirupati is a major junction in South Central Railways. Indian Railways  operates direct trains from near by metro cities - Bangalore, Chennai, Hyderabad and other major Railway stations to Tirupati. Trains can be boarded at nearby cities - Renigunta (10 km from Tirupati) and Gudur (100 km) as well. Frequent bus service is available between Tirupati, Renigunta and Gudur.
National Highway NH 205 passes through Renigunta and hence is accessible from Chennai (4-6hrs), Bangalore (6½+ hours), Hyderabad (10-12 hours) and other nearby cities.
Private bus operators bus tickets can be booked online at Redbus.in 
Andhra Pradesh State Road Transport Corporation  (APSRTC) - from Hyderabad or from within Andhra Pradesh
Tamil Nadu State Express Transport Corporation  (SETC) - from Chennai
Karnataka State Road Transport Coroporation  (KSRTC) - from Bangalore
It is possible to go on a package tour from various places to Tirupati, with the operator taking care of transport, accommodation and sight-seeing.
Going from Chennai is not a bad idea as it is the nearest Airport which has international & Domestic connections.
TTD Information Centre, V V R Dharmasala, 198 & 199, Peters Road Chennai - 600 014, 2) Manager TTD Information Centre 50, VenkataNarayana Road T Nagar Chennai – 600 017.) offers a package tour, but the person going on the tour has to do the reservation personally (and submit a photograph and fingerprints!) from one of the many TTD offices around the country
Swarnandhra tours, from AP tourism +91 44 2433 3010, +91 44 2433 1977 (from Chennai. You will have to personally go and do the reservations.)  offers a two-day package tour from various places in the country, particularly from Bangalore and Chennai. Rs. 1,100 (For Chennai package tour, inclusive of accommodation and darshan at various temples.)
TTD Information Centre 16th Cross, Vyalikavel, Bangalore - 560 003, Ph:080-23445432/23315361
Tirumala is a world in itself, millions of pilgrims from all over India and abroad visit the temple of Lord Venkateswara at Tirumali round the year. In addition to various shrines scattered all over Tirumali and beyond there are holy water falls, scared rivers and archaeological wonders. It is regarded as one of the most ancient temples which were mentioned in Puranas and Sastras.
The temple is patronized by the Pallavas, Cholas, Pandyas, the Vijayanagar Rulers and the later kings of Mysore. Hastakalaramam Papanasanam, Akasganga, Gogarbham, Shilathoranam, View Point, S.V. Museum are the other places worth seeing at Tirumala. Kapilatheetham, Hare Rama Hare Kishna Mandir, Regional Science Centre, S.V.Zoological Park, Srinivasa Mangapuram, Kalyani Dam, Chandragiri Fort, Tiruchanur, Govindaraja Swamy Temple are the other places worth seeing in and around Tirupathi.
Visit the Sri Varahaswami temple before taking the darshan of Sri Venkateswaraswami. As per traditions and legend, Varahaswami owned the seven hills and agreed to give them to Sri Venkateswaraswami with the stipulation that he too is worshiped. Therefore, Sri Venkateswaraswami asked his pilgrims to visit the Sri Varahaswami temple before visiting him.
Sri Raadhagovinda Mandir (ISKCON), Vinayakanagar. edit
Carry Extra locks for your vehicle as well as rooms. The tirumala is notorious for thiefs. People have reported laptops, Phones and Baggage and various items stolen from thier locked room or car.
While in Tirumala, DO NOT:
Wear inappropriate clothing.
Eat non-vegetarian food.
Wear flowers - all flowers are for the Lord only.
Spit or litter or create any kind of nuisance.
Carry mobile phone/camera/pager/video camera etc. while going for darshan. They are banned inside the temple (inner) sanctum
When visiting the greatest of temples of the Lord Sri Venkateswara, one must not forget to purchase an image of the lord; only two photos have been released in history. There is also a Tirupati laddu (sweet) which one must not forget to purchase at the temple. This is the renowned Tirupati Laddu, which is the main offering to the presiding deity of the temple. It tastes divine, and you can arrange to purchase more for your family but the usual limit is two per person.
Many Tirupati related articles/souvenirs can also be purchased and a shopkeeper shall be only too happy to assist you with that.
The SAPTHAGIRI magazine was started as a TTD bulletin in 1949. Currently, it is circulated all over the country as an illustrated, religious magazine It is a monthly edition and available in five languages - Telugu, Tamil, Kannada, Hindi and English.
After seeking the darshan of Lord Venkateshwara, you get free meal coupons at the SriVari temple. The simple meal consists of rice, sambhar (heavily dal/lentil veg soup), chutney, rasam (light soup), and vegetable curry.
Tirupathi and Tirumala is a pilgrimage town. People on pilgrimage don't drink or eat non-vegetarian food. Consumption of liquor is prohibited in Tirumala. Smoking is also not allowed in Tirumala.
For Drinking it is advisable to use bottled mineral water only as the water available here might be sour in taste. As mentioned in the later section, the laddu of tirupati is "nearly" as famous as the deity himself. One should not fail to have a taste of this very special and holy sweet.
Private Accommodation is available in Tirupati city with numerous hotels catering to the pilgrims. TTD provides for paid and free accommodation in Tirupati for pilgrims
Paid: Sri Venkateswara Dharmasala (Opp. Tirupati Railway Station), Sri Venkateswara Guest House (North of Railway Station), Sri Kodandarama Dharmasala (South of Railway Station) and TTD Alipiri Guest House (near foothills) offer non air-conditioned accommodation. Sri Padmavathi Guest House (on Chittor Road) offer air-conditioned accommodation
Free: Sri Govindaraja Dharmasala, Sri Kodanda Rama Dharmasala and Sr
TTD has built cottages in Tirumala that can be rented by pilgrims. There are 3 categories of accommodation, based on location:
Sri Padmavathi Guest House Area (Rs 100 to Rs 250 for Non-AC accommodation, Rs. 500 to Rs. 2500 for AC accommodation, )
Sri Venkateswara Guest House Area (Rs. 100 to Rs. Rs. 250 for Non AC accommodation, Rs 600 to Rs 750 for AC accommodation)
Sr Varahaswami Guest House, Rambagicha, HUDC, Travellers Bungalows Cottages Area (Rs. 15 to Rs 150 for Non AC accommodation).
TTD also provides free accommodation in choultries. Pilgrims can contact Central Reception Office near Bus Stand for free accommodation.
Reservation for AC accommodation and Non-AC accommodation above Rs 100 per day can be made only at the Central Reception Office, Tirumala. For reservation of Non-AC accommodation upto Rs. 100 per day, Pilgrims can make reservations upto 30 days in advance. Reservations can be made in person at TTD Information Centres in Delhi, Mumbai, Chennai, Bangalore, Hyderabad, Pondicherry, Visakhapatnam and other district Head Quarters in AP, by paying the requisite amount.
Alternately reservation can be made by sending a Demand Draft (DD) for Rs. 100 drawn on any Indian nationalised bank in favor of 'Assistant Executive Officer'. The DD has to be posted to Assistant Executive Officer (Reception-I) TTD, Tirumala - 517504. For multiple rooms, it is advised to take multiple DDs for Rs 100 each.
TTD online booking 
Be warned that at times of the year, and around festive occasions you have to book in advance. If you are travelling budget, your best bet is to stay with the TTD, the rooms tend to be clean, well lit and the housekeeping facilities are acceptable. Suggested places, other than TTD lodges are the Kashi Mutt, Ahobila Mutt, Kanchi Mutt among several others (all are close to each other on a ring road, and can be approached by foot from the temple). Be warned though that priority is given to people associated with the mutt's community and you will neither get room service nor air conditioned rooms - but the rooms are well maintained, clean and come with clean beds and sheets. For the Mutt maintained lodges, prior registration is strongly advised.