I wanted a locker so I approached a newly opened HDFC Bank branch in my locality. There I was informed that I can get a locker if I open a Group account – one in my name and one in my husband’s name – with a monthly average balance of Rs.1,00,000/-.
The advantage of the group account is that the combined balance of both accounts could be Rs. 1lacs. Further, the 1st 1 lac will get standard interest of 4% p.a & any amount over and above Rs.1,00,000/- will earn an interest of 9% p.a
My question is-
a) Does it make sense to open a group account and transfer my contingency fund of Rs.2,00,000/- there. I will get 4% on 1 lac and 9% on the other 1 lac.
b) Currently it is in a FD in my name. Since I am a home-maker I do not have any other income. But will the interest above Rs.10,000/- be taxable for me under the clubbing of incomes provision.

Thanks in advance.