Alagarai is a village in Thottiyam tehsil in district of Tiruchirappalli, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Alagarai was 7,521 which includes 3,744 males and 3,777 females. Alagarai covers 572.57 ha area. Pincode of Alagarai is 621209.