10 December 2010
Income is clubbed only if a person transfers an asset i.e. source of income without adequate consideration to his/her spouse or to his/her son's spouse(for the purpose of the given case).
Hence, you interpretation is correct. However when your maternal Uncle gifts Rs. 30 Lacs to your mother the interest income will be assessed (from FD) as your mother's income and won't be clubbed with your father.
P.s. Its better to register Gift deeds in case of giving gifts to avoid any future complications with A.O.