This paired question tests two independent historical relationships and requires both to be correct in the stated order. The Self-Respect Movement attacked caste hierarchy, ritual status and Brahminical dominance while advocating dignity, rationalism, women's rights and self-respect marriages. Reducing it to opposition to a community would distort its social programme. The wording of “Periyar's Self-Respect Movement principally challenged which feature of society?” makes Caste hierarchy and Brahminical social dominance decisive because the stem combines a particular date, place and political consequence rather than asking for a loose association. This development forms part of the changing national movement, in which constitutional negotiation, mass mobilisation, boycott, civil disobedience and revolutionary action followed different strategies; Exact For statement two, the supported answer is Mini Constitution. Magna Carta of India, Charter of Rights and Constitution of Emergency may sound contemporary, yet each misses at least one condition in the stem. This development forms part of the changing national movement, in which constitutional negotiation, mass mobilisation, boycott, civil disobedience and revolutionary action followed different strategies; Exact dates and organisational decisions matter because related sessions or phases often performed different functions, a distinction applied here to Mini Constitution. Evidence connecting Mini Constitution to that role is stronger than a general connection with the same Therefore the correct ordered pair is Caste hierarchy and Brahminical social dominance followed by Mini Constitution. An option containing only one correct component must be rejected because the stem asks for a complete two-part match. This format strengthens chronology, role discrimination and careful option comparison rather than rewarding recognition of a single familiar name.