mhada flat was gifted to me by my fathers brother[uncle] in south mumbai by gift deed in 2014 which was not registered..at that time the cooperative housing society was not formed.in 2015 my uncle expired.presently the cooperative housing society is formed and issued share certificates in my uncles name.now i want to transfer the said mhada property in my name. pls suggest.registration charges and stamp duty payable .building constructed in 2008.