Solution
Convert amount into dollar currency string and replace $ with ₹. This will update ₹ 100.00 to ₹100.00
<tr class="totalrow">
<td background-color="#ffffff" colspan="4"> </td>
<td align="right"><b>${record.total@label}</b></td>
<#assign default_currency = record.total?string.currency />
<#if record.currency="INR">
<td align="right">${default_currency?replace("$",₹")}</td>
<#else>
<td align="right"> ${default_currency}</td>
</#if>
</tr>
</table>