The sorption capacity of an in–house synthesized novel resin Polyhydraxamic acid(PHA) towards Cu(II), Sr(II), Gd(III), U(VI) ions was studied using batch sorption experiments and was found to be following the order Sr(II) < Cu(II) < U(VI) <Gd(III). The monolayer uptake value (q_m) for Langmuir model was found to be 11.36 mg Sr(II)/g of PHA, 91 mg Cu(II)/g of PHA, 111 mg U(VI)/g of PHA and 125 mg Gd(III)/g of PHA. The sorption dynamics followed pseudo second order kinetics. The pseudo second order rate constant (K₂) values were found to be 0.02 g of PHA mg of Sr⁻¹ min⁻¹, 6.09 × 10⁻³ g of PHA mg of Cu⁻¹ min⁻¹, 9.7 × 10⁻⁵ g of PHA mg of Gd⁻¹ min⁻¹, 0.018 g of PHA  mg of U⁻¹ min⁻¹.