Home loan sanctioned on builder's fake documents, how to proceed

taken a home loan & repaying EMI regularly since 2014. Project is still not completed. Recently through RTI it has came to notice that the project was not constructed according to the then approved plan. The existing plan (actual) was compounded later on 9.9.2014 whereas the home loan were sanctioned prior to this approval. Builder has submitted false undertaking as well as fake plan to bank stating that the construction is in accordance to approved plan. Bank has denied to provide the copy of plan submitted by builder directly to bank & also not responding on my complaints. What action can be taken against the bank. Can we ask the bank to recover the entire loan amount from builder.