Admission to any particular seva on payment of a fee is known as “Amantranotsavam”.
The “Vaikhanasa Agama” exists in two parts. The first part deals with rituals that are performed in the temple and to the presiding deity. The second part deals with purification ceremonies that a priest must undergo in order to qualify to serve in the temple.”Vaikhanasa Agama” was written by Sage Vikhanasa, is considered as one among four main “Vaishnava agamas”. Mareechi, Bhrigu, Kashyapa and Atri, the four disciples of Sage Vikhanasa spread the essence of Vaikhanasa Agama across the world.
The daily, weekly, monthly and annual arjitha sevas or festivals that are performed in the famous hill shrine of Lord Venkateswara at Tirumala are as per the recommendations of Vaikhanasa Agama since several centuries.
The Vaikhanasa Agama recommends six times puja a day viz. Prathyusham which promotes the development of healthy population, Pratahkala that promotes Japa and Homa, Madhyahna in the promotion of the kingdom, Aparahna that brings about the destruction of evil doers, Sayankala which leads to greater and increased agricultural production and Nisi aradhana that develops the cattle population. As it is not always possible to perform six pujas a day in a temple, the same agama also recommends minimum one puja.
“Shatkalam va Thrikalam va Dwikalam
Ekakalam va Pujanam Deva Devasya”
In Tirumala at present three pujas are performed, one in the morning in conjunction with Thomala Seva which is open to public, another abridged puja in Madyahna (in the afternoon) and third one at night which is strictly a private one in which the archakas, the paricharakas and the acharya purushas of the temple alone takes part.
The temple administration of Tirumala Tirupati Devathanams(TTD) performs daily arjita sevas to the presiding deity as a matter of divine exercise and also allows Grihastas (pilgrims) as partners in the exercise as a token of involvement of the devout service.