Few things come in to my mind:

I am 100% certain that this maobadi bootlicking web blog site called mysansar will never publish anything against maoist leaders.

Now as long as they publish concrete proof of leeching by other party members, i think that is going to be a good start.

However; having said that is Umesh really trustworthy? given his recent history he has been infamous for not holding up to his words and have time and again disappointed his website users. If someone were to provide a legit documentation, would this guy protect their identity?  What then is the consequences this person will face if in fact he were to revel the identity of someone who posted such material on his web blog? people who indeed want to post such material need a cushion to post such material. How will anyone ever verify the legitimacy of the documents or materials being published?