Rhutuja, you can get the sample papers of SOF IMO for class 2 students. The actual question paper is not officially released on their website. Although the sample paper is designed just like the actual paper. You can download it from the official website: http://www.sofworld.org/imo/class-2/sample-model-test-papers/imo-sample-papers-class-2

For the syllabus and books/ materials which you can refer for the exam, please visit: http://www.sofworld.org/imo/class-2