Hi,

You don't need to worry as you are eligible for the job in Delhi police whether you have a tattoo or not.

A few years back, there was a lack of clarity regarding the recruitment of a police employee having any kind of tattoo.  But the Central Administrative Tribunal clarified that any candidate  who has a tattoo on his cannot be declared unfit for the job of Sub-inspector.

So, don' worry you are eligible for the job of sub-inspector.

Thanks!