To avoid a repeat of Bharti Airtel-type fiasco, the Aadhaar-issuing authority UIDAI on Tuesday directed banks to seek an explicit consent of the beneficiary before changing the account to which the government subsidy is being remitted.Also, the banks have been asked to intimate the beneficiary about the change within 24-hours through SMS and e-mail as well as provide an option to the person to reverse the change, according to a Gazette notification issued by the Unique Identification Authority of India (UIDAI).