The E-Darshan is the Tirumala Tirupati Devasthanams (TTD) online services to pilgrims in
Pilgrims to Tirupati Tirumala Balaji temple can reserve for pujas and darshan minimum 2 days and maximum 60 days in advance. Each Pilgrim has to offer his finger print and photo will be captured at the time of booking.
E-Darshan facility is available at all district headquarters in Andhra Pradesh.
At present the special darshan ticket costs Rs.50 each, Archana Anthara Darshan tickets are priced at Rs.200 each, Nijapada Darshanam costs Rs.200 each (only on Fridays) and accommodation at Tirumala starts from Rs100.
The address of the E-Darshan counters in the various towns and cities can be found here.
Another simple option, provided you have credit cards or debit cards, is the Tirumala Tirupati Devasthanams e-service. You will also need to upload your photo and have a photo id card.