Time limit for hearing

We have filed a case in patna high court against several Govt authorities like DM, SP, land reforms authority and others for not taking measures to protect us while constructing our house.when ever we start construction some local antisocial elements come in the group and demolish and destroy the materials.police files case under 107 and that's all. SDO office has ordered to provide protection in 2012 but It is only in paper. case was filed in June 2015. Since then no hearing has taken place.our lawyer was saying notice has been issued by the court and opposite party has to reply. He was not giving any date by which they have to reply. Now he is saying that case is in que for hearing and he does not know when it will be heared. We are asking him to give the copy of the notice sent by the court he says court does no gives any copy. Now we are in a fix what to do ? Please guide us? I would like to ask you 1. What is minimum and maximum time for hearing after filing a case. 2. Does court gives copy of notice to lawyers?