Saptapadi (English: seven steps, saptapadī) is the most important rite (Sanskrit: rītī) of a Hindu marriage ceremony. The word, Saptapadi means "Seven steps". After tying the Mangalsutra, the newlywed couple take seven steps around the holy fire, that is called Saptapadi.
During saptapathi karma the husband places wife's right leg on a solid stone (அம்மி) in tamil. This symbolically tells that the wife should stand firm during happiness and sadness period. The HUSBAND prays to Lord vishnu to guide them throughout in their life
This karma is a part of marriage. Naturally the husband should wear panchakacham and the wife madisar preferably readymade. This is because this dress is a. Easy to wear b. It saves time for wearing c. It saves energy d. A person can wear independently