repair badly cut holes for spotlights

I hope somone can advise me.

I have to finish off a shower room ceiling but one of the of the spotlight holes (72mm diameter) was badly positioned (next to a wooden joist). The result is that I've had to move the 72mm holes into a free postition - the centre of the new hole is about 20mm away from the badly positioned one (but overlapping - hope u can visualise what I mean).

The quesiton is how do you recommend I repair the plaster around the hole to bring it back to a smooth looking 72mm hole ?

Thanks

You can build it up with Polyifilla etc & repaint.

Thanks for the quick answer. I'll give it a go.

If it is a plasterboard ceiling, cut another piece of plasterboard to the 'moon shape' that you require as a fillet and then stick it into place with a bit of support behind to the top side of the ceiling (Gripfill is good). Fill in the cracks with polyfilla, sand as required and job done.