Indian Railways — Security in trains

We have been using the services of indian railways since a very long time. Inspite of repeated incidents and threats that we face nowadays, we do not see enough security police frequently in trains. There have been numerous instances when people without reservation tried to make their way into our coaches and try to share place. In some cases we do not see a single police in our vicinity throughout our journey. Not that we are unconcerned, but we cannot trust anyone to share place. It feels unsafe to see so many people travelling without reservation near restrooms as well. Request the authorities to be more careful and ensure us better safety.