["What document is required for salaried individuals to prove their income?", "What document is required for non-resident Indians (NRIs) to prove their employment status?", "Which of the following can serve as both identification and residence proof?", "Which document is necessary for property purchase to ensure the builder or society has no objections?", "Which document is not mentioned as a form of income proof?", "What is one of the acceptable forms of identification proof?", "What is an acceptable document to prove age?", "Which of the following documents is required for self-employed individuals to prove their business address?", "What document is required for professionals like C.A. or Doctor to prove their qualification?", "What is one of the acceptable forms of residence proof?"]