Consumer Redressal

I purchased a new house In an newly constructed apartment for which I have taken the possession in may 2014 and stared to live in October 2014. I have observed dampness on several walls due to faulty workmanship from the builder's side, as well as the tiles in the toilets are cracked and being fixed in very untidy manner. As the dampness in walls started to come now and my colouring of the walls has already been done around one and half month back. As even though maintenance department has taken over the repairing of the wall they have refused to taken over the colouring of the walls. Further as regards tiles they just are putting white cement/putty in the bathroom tiles to cover the cracks. I request you to help me as I am being penalised for the faulty workmanship from the builder side. So please let me know what to be done in this regard.