The document provides instructions for a written test for admission to the Tata Institute of Fundamental Research. It describes that the test will have three parts, with Part A being common to both Computer Science and Systems Science streams. Part B will cover topics specific to Computer Science, while Part C will cover topics specific to Systems Science. Sample topics and questions are provided for each stream. The test will be three hours, multiple choice, and involve negative marking for incorrect answers. Calculators will not be permitted.