M.Tech. in Soil and Water Engineering 

at Dr. NTR College of Agricultural Engineering, Guntur

BTech courses do offer a variety of electives for you to opt for in the 5th and 6th semesters, where you get the chance to pick a specific subject that interests you more and is easy-going for you. 
You can choose to pick a subject according to the specialised field within your broad BTech specialization, which you would like to enter into in the future, where you see yourself as a happy and well-established engineering professional. For example, in BTech Electrical Engineering, there are a variety of electives like Power Systems and Electronics, Signal Processing, Communication Systems Theory, VLSI Technology, etc.

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BTech Syllabus

The BTech syllabus is not similar in all the Indian colleges. Talking about the first year of BTech, the general subjects taught are almost similar that include Physics, Mathematics, Chemistry and other engineering fundamentals to provide a basic foundation for the BTech course ahead. Further, the BTech syllabus will differ on the basis of the specialisation you have chosen and the college, different colleges follow their own set of guidelines regarding the course curriculum that includes both core and elective subjects along with practical lab work.