A ENTERED INTO A AGREEMENT WITH A BUILDER TO PURCHASE A HOUSE IN 2006. HE MADE PAYMENTS TOWARDS CONSTRUCTION IN INSTALMENTS UPTO DEC., 2010. THE FINAL PAYMENT IS TOWARDS KEB, BWSSB ETC. THE PROPERTY IS STILL NOT REGISTERED IN HIS NAME. HE IS THE ASSIGNOR WITH RESPECT TO THE PROPERTY. IF HE INTENDS TO SELL THIS PROPERTY TO THIRD PARTY CAN HE CLAIM INDEXATION