Registration of property amendment

HI , I HAVE A PROPERTY WITH AMRAPALI BULDERS YET TO BE REGISTERED PURCHASED IN MY NAME WITH MY SISTER . I HAVE PAID ALL THE EMI'S FOR THE SAME.

NOW I AM MARRIED AND WANT TO REGISTER THE PROPERTY IN MY AND MY WIFE'S NAME  .

MY SISTER HAS NO ISSUES AND IS READY TO GIVE RELINQUISMENT DEED AS SHE HAS RECEVIED HELP FROM PARENTS FOR SEPREATE PROPERTY.

IS THIS POSSIBLE ? WILL I HAVE TO GIVE TRANSFER CHARGES ? WILL  MY SISTER BE REQUIRED DURING REGISTRATION?

PLEASE ADVICE RIGHT COURSE OF ACTION?