• Delay by builder in delivering property

I booked an apartment from a builder in Gurgaon in July 2008 but have not received the apartment till date. On different instances, I was intimated by the builders office various hand-over dates, from 2012 end to Q1 2013 to Q4 2014. The builder delayed the construction, changed the plan, changed project site etc. I have no idea when will I eventually get the apartment. The compensations written in the builder buyer agreement is lopsided. If the buyer delays payment, then the interest charged is 18% while it is Rs. 5/sq.ft, if there is a delay by the builder. The builder does not even commit as much. What is the legal recourse? Please advise.