Once there lived a Svami named Mantrasalagatta Svami and he has postulated based on unique opinions from the Dharmashastras, which is called Mantrasalagatta sampradayam. A few who that tradition live among us. They practice rituals, shraddhams, etc. based on this tradition. If one wishes to practice this tradition, one must know about this extensively in detail. Or else, it is enough to be aware of such a tradition.