It is necessary for one to decide their career. Now that you have entered into B.Tech. So, now you have to start looking into your future.
There are two options you prefer after you complete your B.Tech degree. If you are economically efficient and dont need a job, it is better you go for your further studies. A specialization will always earn you more salary as well as priority during interviews and of course sound grip over subject. Otherwise you can find some job.
If you prefer to continue to studies, you can do Post graduate courses and then obtain a Ph.D. You have lots of options during this P.G course like M.S/ M.Tech, IAS/IPS, Navy/NDA and Finance related courses like MBA.
M.S/M.Tech: Entrance exams for Post Graduation in Engineering Courses. If you prefer doing P.G in your field of study, you can go for M.S/M.Tech. If you are ready to go outside India and financially sound you can prefer M.S. You need to appear for GRE/TOEFL for doing M.S in Foreign countries.
GRE: The Graduate Record Examination or GRE is a standardized test that is an admissions requirement for many graduate schools in English speaking countries. It is created and administered by the Educational Testing Service and is similar in format and content to the SAT. It is a computer based Online Test. The percentile scored in this exam will decide your future in doing M.S in foreign nations.
TOEFL: The Test of English as a Foreign Language (or TOEFL, pronounced “toe-full” or sometimes “toffle”) evaluates the potential success of an individual to use and understand Standard American English at a college level. It is required for non-native applicants at many English-speaking colleges and universities. A TOEFL score is valid for two years and then is deleted from the official database.
Since its introduction in late 2005, the Internet-based test (iBT) has progressively replaced both the computer-based (CBT) and paper-based (PBT) tests. The iBT has been introduced in phases, with the United States, Canada, France, Germany, and Italy in 2005 and the rest of the world in 2006, with test centers added regularly. The demand for test seats remains very high even after almost a year after the introduction of the test: Candidates have to wait for months since short-term test dates are fully booked. The four-hour test consists of four sections, each measuring mainly one of the basic language skills (although some tasks may require multiple skills) and focusing on language used in an academic, higher-education environment. Note-taking is allowed in the iBT.
GATE: Conducted by one of seven Indian Institutes of Technology in rotation, Graduate Aptitude Test in Engineering (GATE) is an annual exam for admission to M.Tech and M.S. programmes in most engineering institutes in India. It is regarded as a benchmark test for engineering graduates in India . This examination is coordinated by a committee, comprising of Indian Institute of Science, Bangalore and seven Indian Institutes of Technology on behalf of the National Coordinating Board – GATE, Department of Education, and Government of India. The pattern and syllabus are usually based on a candidate’s B.Tech. Or BE syllabus. Minimum eligibility for appearing in this exam is usually a B.Tech, BE, B. Arch. or Masc. The exam is usually conducted on second Sunday of February.
PSU’s like BARC, NPCIL, HAL etc. give importance to GATE scores for various job positions in their organizations.