Siroi Alias Belwadamar is a village in Ranka tehsil in district of Garhwa, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Siroi Alias Belwadamar was 987 which includes 509 males and 478 females. Siroi Alias Belwadamar covers 674 ha area. Pincode of Siroi Alias Belwadamar is 822125.