From what I know, small loans (of more than 1 or 2 month salary - not sure on count), from organization at 0% is not seen as loan by taxation authorities (atleast this is what our TDS consultant at a prev org convinced us of). May be adding a nominal interest may work - pls check with right team.
I, principally am not a fan of salary advances or loans for lifestyle needs, unless there is a medical need or a critical need of cash infusion. This helps build a bit of financial discipline. Again, this is my personal opinion.