Not only railway, Most of the PSU has unions framed by political parties. In order to show their power each one do different different actions. Few of the union demands are good and can be considered but most of the demand there for financial things to make some benefit for them. We cant completely go out of union. IT is best example how things goes without any union. Mass layoff, un conditional work hours, neopotism in all level need to be tackled only through union. But Workers there should understand the persons who are in head should genuine to make proper demands get done.

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In Indian, politics is everywhere, in fact one can't survive without being political and most of political parties try to portray themselves as messiahs of people by various means.
So, this all will continue but with the time these politically affiliated unions will be made weak by govt

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