(1) The return mentioned in section 53 shall be in Form No. 11 B, and shall be submitted every month so as to reach the assessing authority of the area on or before the 10th day of the month following that to which it relates. Banks which do not have transactions in Bills as described in section 53 shall submit, in respect of every month, nil returns on or before the said date.

(2) Bills relating to sale of shares and stocks need not be included in the returns.