O M Mangalam is a village in Sriperumbudur tehsil in district of Kancheepuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of O M Mangalam was 1,099 which includes 547 males and 552 females. O M Mangalam covers 198.9 ha area. Pincode of O M Mangalam is 631553.