Blood donation, often called the gift of life, could turn into a nightmare like it happened with eight-year-old Andhra girl Pratyusha who was diagnosed with HIV possibly after a blood transfusion at Warangal. Therefore, the Andhra Pradesh government is now starting a first-of-its-kind centralised bloodline directory that will use technology to keep out paid donors and infected blood by capturing the donor's face and fingerprint on camera.