Nangal Siya is a village in Mandawar tehsil in district of Alwar, Rajasthan, India. As per the data provided by Census of India in 2011, total population of Nangal Siya was 661 which includes 369 males and 292 females. Nangal Siya covers 177 ha area. Pincode of Nangal Siya is 301401.