Gift _ taxability

Hi,

Mr. A is minor. He receives gift of Rs. 1 Lakh from his mother's father. As understood this amount would not be taxable in A's hand as gift is received from lineal ascendants or descendants..

Mr. A invest this amount in Bank FD ? will it attract clubbing of income provisons ?

Mr. A plans to invest the same in PPF Account. But Mr. A's father and mother both have thier PPF Account in which they have already contributed maximum limit which is Rs. 1 lakh each. Can Mr. A (who is minor) deposit Rs. 1 lakh in his PPF Account.

Thanks