Thank you guys, finally I got the solution.
The credit goes to "MasonDoran" who suggested me the script "P3D_Solidify" from highend3d & to "Patar" who wrote this script.

I have posted this question at cgsociety.org also, and there "MasonDoran" has suggested me this script.

See the below image what I did with "P3D_Solidify" and its exactly same what I was looking for.



Thanks again to MasonDoran and Patar.