Capital Gain exemption on purchase of new hiuse property in

A. An individual has earned capital gain on sale of his residential house.

1. Whether he is eligible to claim deduction on capital gain in the following   

     situations:-

1. He purchases the new house in the name of his father by utilizing the above capital gain. Father is not contributing any money for such purchase.
2. He purchases the new house jointly in his name and name of his father by utilizing the above capital gain. Father is not contributing any money for such purchase.

2. Whether in the above case will it amount to gift to father. If yes, is the value of gift is   

    includible in his father income. 

B. An Individual who has advanced money to builder against purchase of a Residential House and now would like to get this house registered in his mother name directly from builder. Whether

1. This amount gifted to mother will be includible in his mother income.
2. If any Rent received by his mother on the above house will be includible in the income of the individual who has gifted house.