Clubbing of income is applicable is applicable as the asset ( money) in this case is yours and is transferred to your spouse.

I may suggest an alternate route which could be like transfering the amount to your parent's  name either father or mother and then they can invest these amounts in their name and earn interest. As these will not attract tax for them u/s 56(2) of the act as they fall under the perview of lenial anscedents.

However if both of them are working then you may consider you may check if any one falls in a slab of 10 or 20 % and gift this amount to one whose income falls under these brackets