Last week I had to accompany my mother to her public sector bank because she wanted to update her signature, which in recent times was deteriorating with age. The lady across the counter was very courteous to start with and I was getting apprehensive about what was in store. As expected, towards the end of the formalities she chided my mother to put a chunk of her balance into an FD, which was giving a very good return of 7.25 per cent. Under normal circumstances, my mother would have said no. But this time around she looked at me for an answer.