I have completed my B.Tech in CSE (April 2010) from ISM Dhanbad with a GPA of 6.85 (=68.5%) . My GRE score is 1450 and I have a budget of 20-25 lakhs for my MS-networkin. What are the best available options for me? and how much do I have to spend in case I opt for University of Southern California?

With this GRE score, i would never think about applying to University of Southern California. You should apply to universities like University of Texas at Austin, University of Illinois--Urbana Champaign, Georgia Institute of Technology. Fees would again depend from university to university but it w