In current technical environment, communication is very much dependent on the wireless and ad-hoc devices. Mobile Ad-hoc Networks contains many mobile devices and prove to be the good option for communication in various applications including military, industry and remote areas (flood hit areas, nuclear hit areas etc). Generally due to limitations of energy carrying capacity, on demand routing usually vulnerable to various attacks which can be harmful for ad-hoc communication. Wormhole attack is one of the attacks which is very harmful to the ad-hoc communication. Wormhole attack is the most occurring attack in mobile ad-hoc network.