Amid protest over the Citizenship Amendment Act (CAA), Aadhaar authorities summoning a man in Hyderabad and asking him to prove his 'citizenship' has started a fresh row. Md Sattar, a resident of Bhavani Nagar in Talab Katta, has been asked to appear before the 'inquiry officer', a deputy director of UIDAI, on February 20 at 11 AM.