1. If any immovable property is there in the HUF then it can be dissolved by way of deed of partition which is required to be registered as well.
2. Since no immovable property s there in your case, then a simple notarised deed for partition is enough.
3. The bank is definitely required to be informed of this dissolution and the a/c is to be closed.
4. The following legal aspects in respect of partition of HUF, should also be kept in mind while the partition of HUF which are as under :- (i) Distribution of the assets of an HUF in the course of partition, would not attract any capital gains tax liability as it does not involve a transfer. (ii) On the basis of the same reasoning distribution of assets in the course of partition would not attract any gift tax liability, and (iii) There would be no clubbing of incomes u/s. 64 as it would not involve any direct or indirect transfer.