“The demand has increased, but we don’t have the option of conducting private camps. The regular donors have reduced, and after vaccination drive, even the number of voluntary donors have also reduced. We are totally dependent on voluntary donors and we are even going through the database to check for eligible donors,” Devaki said. Blood bank representatives added that the eligibility criteria have also been revised due to COVID. Due to this, many of the voluntary donors are rejected because of their infection status. Dr S Subhash, joint director (Blood Safety), Tamil Nadu State Blood Transfusion Council, said permission has been sought for conducting blood donation camps to meet the increased demand. People should be encouraged to donate blood before they get vaccinated, he added.