The extensive applications of Mobile Ad-hoc NETworks (MANETs) are in civilian and military. In the MANETs nodes are joining to any point and leave the network at any point of time. This generic characteristic of MANET has rendered it vulnerable to security attacks. In this paper, the authors are trying to solve the problem regarding attacks by black-hole in the group of nodes. They are dealing with the identifications of multiple black holes and a remedy to generate another route avoiding black-hole attacked nodes. They are also trying to deliver security to avoid DDOS attack.