New Delhi, July 22 -- The Election Commission of India (ECI) on Monday defended its ongoing special intensive revision (SIR) of electoral rolls in Bihar, telling the Supreme Court that Aadhaar, voter identity or ration cards cannot be accepted as proof of voter eligibility and asserting its constitutional authority to demand evidence of citizenship. In a detailed affidavit submitted on Monday evening, the poll body argued that its powers under Article 324 of the Constitution provide it with plenary authority to supervise and direct all aspects of elections, including the preparation of electoral rolls. This constitutional mandate, it contended, empowers the Commission to scrutinise voter eligibility, including the requirement of Indian citi...