Why does Vadakali sect not celebrate Manavalamamunigal’s Thirunakshatram? Likewise, why does the Tenkalai sect not celebrate Swami Desikan’s Thirunakshatram? Has Manavalamamunigal provided any reference to Swami Desikan in his books? Do we not celebrate Mamunigal as Swami Desikan being our prime preceptor? And is the reason why Tenkalai sect does not celebrate Swami Desikan as Mamunigal is their prime preceptor?

Though both are Acarya-s and since in respective traditions there arose a difference of opinions, the rituals and virtues laid down by Swami Desikan were not accepted by Manavalamamunigal. Similarly, the followers of Desika Sampradyam did not accept their rituals, resulting in sectarian differences. The spirit to celebrate Acarya Thirunakshatram seems to be on the decline but there is no hostility and no stipulations that it should not be celebrated at all.
Manavalamamunigal had referred to Swami Desikan as Thupul Pillai in some of his works. Swami Desikan did not mention Mamunigal as he was the predecessor to Mamunigal.