Omnet++ is an Objective Modular Network Testbed in C++. We provide Omnet++ as general purpose simulator to simulate various network models. We offer Thesis in Omnet++ for M.E, M.Tech, MS and PhD students. Omnet manual has been started to offer the research assistance for the researchers to develop their research skills. We provide various Omnet manual projects for research scholars and students which need hierarchical nested modules to establish communication by sharing information to each other. Every single hierarchical module composed of system module and sub module. System module start node communication and hierarchical module depth is unlimited messages, gates and links in Omnet manual simulation source code. For more research assistance the research scholars can contact us.