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## Trivarnika Achar
**10.** At the time of Upanayana, a square platform should be built with the Acharya's feet as the base, six, five, or seven pands long and wide, and one hand high for the child.
**101.** The wall should be two hands long, thirty angulas high, and twelve angulas wide.
**102.** Eight steps should be built on each side of the platform. In front of them, there should be a kalasha-shaped structure. This is the opinion of the Pujakars.
**103.** The pit-peethka should be thirty-eight angulas long, six angulas high, and eight angulas wide. It should be made of wood like Udumbara.
**104.** The marriage should be performed on the same day, whether it is day or night. The Homa should be performed according to the prescribed order.
**105.** Until the Sapta-padi (seven steps) is performed, the marriage is not considered complete. Therefore, the Sapta-padi should be performed in the marriage, as stated by the Munis.
**106.** If the bride becomes menstruating after the marriage Homa has begun, the couple should remain separate for three nights, with separate beds, seats, and food. This means that all the actions of the bride during menstruation should be performed according to the rules mentioned in the 13th chapter.
**107.** On the fourth day, after the bride has bathed, the Homa should be performed according to the prescribed rules. The remaining rituals like Kanyadaan should also be completed.