Banks can always shift the securities falling in the category of HTM to the other two categories. k. It was further urged on behalf of the assessee that the plea based on distinguishing the nature of the treatment of SLR securities viz­a­viz non­SLR securities has been raised for the first time by the Revenue before this Court. l. Considering the fact that securities are held as stock­in­ trade, interest paid on them constitutes an expense which is liable to be claimed as a deduction. 9. The submission of learned ASG is that the broken period interest on security held to maturity constitutes an investment and, therefore, should be treated as capital expenditure. It was submitted that since HTM securities are held up to maturity for maintaining the SLR ratio and as the same are treated as investment in the books of accounts of Banks, the same should be treated as investment and not stock­in­trade. Another submission of ASG is that Circular No. 18 of 2015 applies only to non­SLR