{{
    "SlNo": "{item.sr_no}",
    "PrdDesc": "{item.description}",
    "IsServc": "{item.is_service_item}",
    "HsnCd": "{item.gst_hsn_code}",
    "Barcde": "{item.barcode}",
    "Unit": "{item.uom}",
    "Qty": "{item.qty}",
    "FreeQty": "{item.free_qty}",
    "UnitPrice": "{item.unit_rate}",
    "TotAmt": "{item.gross_amount}",
    "Discount": "{item.discount_amount}",
    "AssAmt": "{item.taxable_value}",
    "PrdSlNo": "{item.serial_no}",
    "GstRt": "{item.tax_rate}",
    "IgstAmt": "{item.igst_amount}",
    "CgstAmt": "{item.cgst_amount}",
    "SgstAmt": "{item.sgst_amount}",
    "CesRt": "{item.cess_rate}",
    "CesAmt": "{item.cess_amount}",
    "CesNonAdvlAmt": "{item.cess_nadv_amount}",
    "StateCesRt": "{item.state_cess_rate}",
    "StateCesAmt": "{item.state_cess_amount}",
    "StateCesNonAdvlAmt": "{item.state_cess_nadv_amount}",
    "OthChrg": "{item.other_charges}",
    "TotItemVal": "{item.total_value}",
    "BchDtls": {{
        "Nm": "{item.batch_no}",
        "ExpDt": "{item.batch_expiry_date}"
    }}
}}