Sembagarayanellur is a village in Vedaranyam tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Sembagarayanellur was 5,101 which includes 2,495 males and 2,606 females. Sembagarayanellur covers 1233.53 ha area. Pincode of Sembagarayanellur is 614806.