Vawiin khan NSS unit, Govt Central HSS Aizawl chuan 'Awareness campaign on Voluntary blood donation' an nei a. Tah hian Pu Rodinthara PO chuan thisen pek a pawimawh zia a sawi a, NSS volunteers te chu a mamawh te hnena thisen pe zel turin a hrilh a, kan mihringpui te chunga thil ka tih ropui ber a ni a ti.