why there is no pure 'software engineering' but cse/it
Software Engineering is a specialized course as a result it needs a good background about the coding in order to learn Software engineering in details. As a result for Software Engineering, the course is offered in MTech. So if you want to go for BTech CSE/IT then after that you can get jobs in software engineering genre as well. So if you aspire to be a software engineer, you can go for CSE/IT or you can get into MTech to know in more details about Software Engineering.
To know more about Software Engineering as a career visit the link below:
https://www.careers360.com/courses/software-engineering-course
To know more about CSE as a career visit the link below:
https://www.careers360.com/courses/computer-science-engineering-course
To know more about IT as a career visit the link below:
https://www.careers360.com/courses/information-technology-course
I hope this answer helps. All the very best for your future endeavors!