GATE

Yes absolutely. You need to work on your SOP, LORs and get some work experience in your field of interest.

Hello Shiv,
GATE entrance examination helps to get admission into government colleges in India for M.Tech. Certain jobs also demand for a valid GATE score. GATE score is also accepted by many private engineering colleges for admission into M.Tech.
GRE entrance examination helps to get admission into courses abroad. You also need to appear for TOEFL to be able to get admission into universities abroad. If you're financially good, you can opt for this option.
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Hello Aftab,
As you have completed B.Tech in ECE, you can appear for GATE in ECE branch. The students who have completed B.Tech in computer science, information technology or software engineering can appear for CSE in GATE 2017.

GATE has three benefits:
1. Entry to PSUs.
2. Entry to top level institutes for M.Tech.
3. Scholarship of 12000 per month, if you take admission in Government College for M.Tech.
But, your GATE score must be good to get any of the above.

GATE aspirants follow different strategies for success, but there is no magic formula guaranteeing GATE exam success. Experts agree that only hard work, planning and starting early, will maximize the chances of success.
A recognizable score in GATE offers a kick start to the career of the student. GATE exam happens in the month of February, i.e. during the last semester (8th) of engineering. Hence, a student will have only six month, if he starts preparing in the 4th year of engineering. Most students are baffled as to when they should start preparing for GATE exam. Experts says that 3rd year is the best time to start GATE preparation.

The notes are available of Made Easy for different branches in market. You can ask for the subscription of books by Career Launcher. Apart from these, you can read your subject reference books.
Quantitative:
1. Arun Sharma, Publisher: Tata McGraw Hill,
2. Pearson Guide to Quantitative Aptitude and Data Interpretation for the CAT by Nishit Sinha.
3. Quantitative Aptitude Common Admission Test by Sarvesh K Verma.
4. Data Interpretation and verbal: Arun Sharma - Tata McGraw Hill.
5. Pearson Guide by Nishit K. Sinha.