My blender has not one option that I really need Actually I am working on blender 2.79 and I want to rig a car and I completed some steps through video tutorial which I found on youtube.

Now I need one option which is cycles setting in object tab of properties panel, but in my blender there is no option of cycles setting.

What to do for that, should I download any plugin?
You must change Blender Render to Cycles Render to enable it.

See it at the top menu bar.

Image below: