Actor Sonu Sood is going to launch what is expected to be India`s biggest blood bank, through an app named Sonu For You. The app aims at connecting donors to those in urgent need of blood. As per the app, a donee can reach out to donors, and on receiving a request a donor can immediately reach the hospital and donate blood. Already being hailed as the country`s biggest blood bank, Sonu For You promises to help patients with rare blood groups.