Weird Lighting Problem

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I am experiencing a very weird problem here.
When I add any light to the scene, everything is ok till till I add 2 lights. But on adding the third light, everything goes weird.
This happened with both point light and spotlight.
I have screenshots of the scene here.

I am very new to unity. So this may be some very silly mistake of mine that I’m not able to see.
Please Help

682-2l.png

This happens because one of the lights is being evaluated as a vertex light! There are a few ways to fix this- you can either increase your quality settings to allow more than two pixel lights, or you can manually set the lights to ‘important’ so that they override the quality settings.