Guruvayoor temple is one of the temples in Kerala where the daily rituals of the temple is done very strictly.Mr Vayalar Ravi should have consulted with the "Respected Tanthri" before he ventures for his grandson's feeding ceremony,since he had an experience before in his sons case,he should have done it.Tanthri have done only that which he is suppose to do,since he had been informed of the impurity.Although the temple rules and regulations should be changed since it had been made by Shankaracharya swami it is totaly impratical to change customs.It is only possible for another Sanyassin who have same caliber as the first Shankaracharya.