Is it permissible for me to claim travel allowance for two months (the past month and the current month) in one report, due to the delay in disbursing the allowance for the past month?

If the employee neglected to disburse travel expenses for the previous month, you have the right to submit the expenses for both months (the previous and the current) together in the current month's report. However, if the expenses for the previous month will be disbursed to you later, it is not permissible for you to include them again in the current month's report to avoid receiving the dues twice, as this constitutes unlawfully consuming wealth.