Objects passing thorugh terrain?

The object that I created is passing through the terrain even though I have added mesh colliders to it…At some areas I am able to see through the terrain… Pls help me out over here…(I have even tried adjusting the near and far clip planes settings in the main camera)…

When objects fall through a terrain they are probably mid-way through your terrain, I usually put my objects quite a bit above ground so Im sure they wont fall through.

Actually my main character is not falling through the terrain. He can pass through the terrain for a small distance after which he is blocked. And when this happens I am able to see the other side of the terrain.
Consider my situation like this…I have placed a rock along with a mesh collider component attached to it in my path and when I go and dash against it I am able to see the objects that are present on the other side of the rock.(I have set a mesh collider for my main character also)…pls help me out guys as this a bit frustrating…

I see your problem now, adjust part of your first person controller, the main xamera, mova it up, so whats happening is youre on the ground but the main camera is below the terrain.

No dude…the main camera is above the terrain and I have tried different adjustments for the main camera but I still keep getting the same problem…