Gejjehosahalli is a village in Nagamangala tehsil in district of Mandya, Karnataka, India. As per the data provided by Census of India in 2011, total population of Gejjehosahalli was 261 which includes 131 males and 130 females. Gejjehosahalli covers 123.06 ha area. Pincode of Gejjehosahalli is 571432.