Without Punyahavachanam, any subsequent ritual is considered incomplete or potentially inauspicious.
The word Punyahavachanam is derived from two Sanskrit words: Punya (merit, purity, or virtue) and Vachanam (declaration or recitation). Literally, it translates to "the declaration of a holy day" or "the invocation of auspiciousness." Punyahavachanam Kannada Pdf