Wp listed for rejection without a single hearing ?

Your Petition still is not coneverted into a Writ Petition. Your Petition is having a Laudging number. That means the petition. Only when the Laudging No gets converted into a Writ Petition no, the petition will be listed before the Judges. Till that time either the petition was in registry and they would have found some defects, which were not removed and hence as per procedure the registry has placed the same before the Registrar. on the required date your lawyer will have to appear before the Registrar and understand why is the petition getting rejected.

Alternatavely, you can visit the High court and go to the registry and ask them to provide you the details why the petition has been listed before the Registrar. They will tell you.

In my opinion, either there were defects in the same, which were not removed or the petition is not maintanable.

Rather then blaming BMC, please ask your lawyer why this has happened.