If the employer is showing it as taxable salary and not reimbursement you need to include it in your taxable salary and pay tax on same.
Generally they show it as reimbursement in which case it is exempt. However in your case it's not the same.
Also they would have included it in taxable salary while calculating and deducting your TDS.
So you should include it in your taxable income.
https://www.taxontips.com/income-tax-return/
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