MathruSri Tarigonda Vengamamba Brundavanam in Tirumala. This is located close to MathruSri Tarigonda Vengamamba Nithya Annaprasadam Complex.
It is located in J.M.K Padmavathi Junior College campus.
I think T.T.D should provide more sign boards to identify the proper location. Not many are aware of the location.