10th CBSE- 87.6 %age
12th CBSE- 81.8 %age

GRE score(322 equivalent to disdainful 1290 in old pattern)-:
Quant-: 170(99 %tile)
Verbal-: 152(53%)
AWA-: 3.5(30 %ile)

TOEFL score-:

28 in Reading
27 in Listening
22 in speaking
27 in Writing

CGPA in B Tech ECE(Electronics & Communication Engineering) from IIT Roorkee-: 7.545( 8.96 topper)

No papers published
Corporate experience
1 year experience in World's no.1 EDA company Synopsys(all projects related to computer science)-:
1. 64 -bit runtime simulation project(64- bit bug fixes)
2. diff utility for strict user specification
3.SPW MATLAB cosimulation flow using Inter Process Communication

College Experience-:
1.was a member of Electronics IIT Roorkee team ROBOCON 2010
2. Did summer internship in DRDO Chandigarh(developing algorithms for snow analysis parameters)
3. Designing neural networks using back propogation algorithm for function realization
4.B Tech Thesis on Hardware Implementation of Stepped Frequency Continuous Wave Radar as GPR

Extra Curriculur-:
1. Was a senior member of institute athletics team and represented IIT Roorkee twice in Inter IIT sports meet
2. Various other inter-hostel sports

As I have built interest in computer science subjects while working at Synopsys, I wanted to apply for MS in computer science but I am confused whether i should stick with ECE in good universities. In other words, transition from ECE to CS is my main concern
As my GRE score is not so good. I wanted have suggestions regarding universities I have short-listed-:
1. Georgia Tech(Computational Science and Engineering Spec Modeling and Simulation)
2. U Wisconsin (Computer Science Engineering) - confused
3. U Mich Ann Arbor(Computer Science Engineering)
4. UIUC(Electrical And Computer Engineering)
5. UCLA (Computer Engineering) - confused
6. Cal Tech(Electrical Engineering)
7 U Minnesota Twin Cities(Computational Science and Engineering)
8 USC (Comp Science)
9 U Maryland College Park - confused
10 Purdue University Lafayette

Please give your honest opinion about the chances of getting into these universities. And also please suggest any other good universities that I should consider applying to for computer science. Especially safe options.