Megamalai is a village in Andipatti tehsil in district of Theni, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Megamalai was 8,348 which includes 4,303 males and 4,045 females. Megamalai covers 32198.36 ha area. Pincode of Megamalai is 625579.