Recovering mysql innodb table from table.ibd backup file

Question

Just practising DB disaster recovery. As per our back up policy, we do complete disk image back ups every half an hour (on our slave server).

Now for a scenario, where some how a table has been accidentally dropped, I thought recovery would be as simple as -

• copy .ibd and .frm file from backup to mysql data dir.
• alter table tbl_name import tablespace;

On issuing a select, DB throws an error - table does not exist. I understand this might have something to do with ib_logfile?

Any ideas how to go about restoring table in this situation?