Does a Yagya has any side effect with other ones ?
Normally a yagya has no reverse effect if there has been any error or short of quantity. The only needful is to correct that or repeat that. In one case a reverse effect may be expected when you have made Samkalp and you cause to stop the Yagya. As the Yagyas are absolutly spiritual, unlikely to other tantrik rituals, it doesn’t react negatively with other parellel activities or the activities done before or after Yagyas. Normally it has no problem with other spiritual rituals of any sect or any caste. We however strongly recommend not to practice any tantrik activity while Yagya is going on. Because, Yagya will not react negatively but tantrik rituals shall defenitely react negatively as Tantra is negative side of spiritualism, while Yagya is positive. Therefore the Tantra doesn’t accept that you should be positively spiritual.