A. Any project which will be formed by the builder must take approval from the local authority. It is mandatory rule.
B. Real Estate bill still under process and it must be permissible from 1/3 majority in the House. Hence, we cannot come to a conclusion, unless bill finally executed and converted as law or act.
C. Unless approved the building or project, the builder cannot commence any booking towards the flat. In case, if the builder will commit to start booking, it would amount to unfair trade practice within the meaning of the Consumer Protection Act, 1986.
D. Better, issue a legal notice to the builder to refund the amount or wait 4 months till approval from the local authority. Perhaps, the builder fails to reply to your notice, you can approach the Consumer Forum under the deficiency in the Service and Unfair trade practice.