Citizenship Amendment alters citizenship eligibility for certain non-Muslim migrants, deeming them citizens from date of entry. The Bill excludes certain non-Muslim entrants from Afghanistan, Bangladesh or Pakistan (arriving on or before 31 December 2014) from being treated as illegal migrants and permits the Central Government or a specified authority to grant certificates of registration or naturalisation; recipients are deemed citizens from their date of entry. Pending proceedings on illegal migration or citizenship abate on conferment, applicants retain rights during application, and exclusions apply to specified tribal and Inner Line areas. The Bill shortens the Third Schedule residence qualification for these persons to five years and provides rulemaking authority and procedural safeguards for Overseas Citizen cardholders.