Understanding Lights in Maya

In this tutorial we will light up an interior scene which should help you understand how lights works

http://www.cgarena.com/freestuff/tutorials/maya/understanding_lights/part4.html

Video Tutorial: Interior Lighting by using Mental Ray

This tutorial will explain you how to use Sunlight, Skylight in the daylight interior scene and later color correction

http://www.cgarena.com/freestuff/tutorials/max/interiorlighting_video/index.html