  In this paper, a tunneling method is developed for nonlinear multi-objective
optimization problems. The proposed method is free from any kind of priori
chosen parameter or ordering information of objective functions. Using this
method, global Pareto front can be generated for non-convex problems with more
than one local front. An algorithm is developed using some ideas of single
objective tunneling method. Convergence of this algorithm is justified under
some mild assumptions. In addition to this, some numerical examples are
included to justify the theoretical results.
