This article provides comprehensive information on How to get SSD Tokens in Tirumala Tirupati, including details about the Tirumala SSD...
"The special entry darshan (₹300) and Acccomdation quota for Dec, Jan and Feb, including Vaikunta Ekadashi (quota from Dec 23rd to Jan 01st),are fully booked"
SSD tokens will be available at 100 counters in 9 location at Tirupati (4.25 lakh Tickets) From Dec 22,
From Dec 23 to Jan 1, those without tickets or tokens will not be allowed for darshan.
Sarva darshan (Free darshan) waiting time is approximately 10 to 12 hours due to high rush."