As per Section 60
If a person only transfers his income to some other person but doesn’t transfer the asset, Income will always be clubbed in the hands of transferor i.e. Person owning the asset.
It doesn’t matter whether transfer is revocable or not
Mr. A gave a house on Rent to Mr B. He asked B to given rent of it to Mr A’s son
In this case, there is transfer of Income (Rent) but there is no transfer of Asset (House)
Hence, income will be taxable in the hands of Mr A even though it has been received by Mr A’s son