Performance of TOP tagging methods

Tagging techniques based on jet substructure of highly boosted hadronically decaying heavy particles are presented. These techniques have received detailed attention from hadron collider \nexperiments in particular for top tagging. They have been tested and validated at the LHC with the 2011 and 2012 data and their performances (efficiency versus rejection) determined. \nResults of the application of these techniques at CDF, ATLAS and CMS experiments are presented. They are becoming important tools for many BSM physics analysis at the LHC and will be even more important in the coming years when the LHC will be operating at 13/14 TeV CM energy.