Tirupati Darshan Timings for Infant , Infant and His/Her Parents are allowed at Supatham Right from 8 am Till 1:30 pm.
Tirupati Darshan Timings for Infant remains the same, it may vary only in the specific period like Brahmotsavam, Radhasapthami and other important festivals in Tirumala.
Entry to Supatham is free of Cost to Infant and His/Her parents. If Infant age is near to 1 year then T.T.D Authorities may demand for Age proof. It is always good to carry age proof for the infant. Only Infant and Parents are allowed through supadam no other relatives have access to the privileged entry at Supatham.
Note that the Infant is allowed up to 1 year through supatham. Infant, in general, means up to 2 years of age, but here in Tirumala, it is allowed up to 1 year.