1. government brought in the concept of deemed conveyance, wherein a society can bypass the builder failing to execute the conveyance deed and get it from the registrar.
2. After issuing a legal notice to the builder, if you do not get any response from the builder, then you can drag him to consumer forum to redress your grievances caused by the builder in this regard and also can seek compensation for deficiency in service. The time taken for disposal of the case cannot be predicted, the lawyers fee and the court fee can be inquired through the lawyer you may engage.
3. If the damages what you observed were existing from the beginning, what made you no to approach the builder to rectify the same because he is supposed to maintain and rectify all such issues that may arise within two years of completion.
Even now you can point out all these things and seek proper compensation for the damages or reimbursement of repair charges or file a suit for recovery of the charges over the expenses incurred due to such issues.