Consumer Redressal

I had an agreement with a builder on May 27, 2012 to build a house with the promise of completion within 4 to 6 months time...85% amount made by November the same year the builder could not complete. demanded orally the total amount to complete the work. I made the remaining payment installment by installment. even after the complete payment the builder did not complete the building. the last payment date was march 17, as he could not keep his promise I sought his explanation on writing he did not reply. but send a legal notice as I evade extra payment but he did not give any detail about the details of extrawork. I refuted all his charges through a legal notice demanding 9 lakhs rupees as he could not complete the work. with this circumstances, already I am paying rs 20000/- as EMI and still could not occupy my house. I need atleast another 6 lakhs to complete the work. can I go for continuing my construction? I donot like to pput the building in the middle due to sentiments. can I aproach court for compensation after I completing my house. pls give me a feedback