The magnetic properties including the magnetic structure were determined by magnetometric and neutron diffraction measurements of the polycrystalline samples of R2PdSi3 (R = Ce, Nd, Tb-Er). In Ce2PdSi3 the Ce moments order below 2.5 K. The Nd magnetic moments in Nd2PdSi3 exhibit ferromagnetic ordering below 17 K. In Tb2PdSi3, a complex situation is observed: in the temperature range from 1.5 K to (T-N = 25 K), there is a coexistence of a ferromagnetic spiral (about 75% of the magnetic moment) and a spin-glass (about 25%). For the Dy, Ho, and Er compounds, below T-N (7.5, 8, and 7 K respectively), sinusoidally modulated structures are observed,he valence band and the core level photoemissions of 4d of rare-earth metal, 3d Pd, 2s and 2p Si were investigated by X-ray photoemission spectroscopy measurements.