B.e /b.tech ke bare mai detail me samjao na plz..

B.E/B.Tech are the courses which are opted after 10+2 PCM. For taking admission in these courses, one has to appear for exams oraganized at state level or national level.
B.E is Bachelor if engineering which focus mainly on theoretical knowledge while B Tech is Bachelor of Technology which focus mainly on practical application of knowledge.
To get admission in government colleges like NIT or IIT, one has to undergo test names JEE which is conducted in two parts :- JEE Mains And JEE Advanced. For this one has to prepare very well. Even these days, most if the private colleges also give admission on the basis of JEE marks. Many private colleges like BITS, VIT also take their own entrance.
Courses offering B.E /B.Tech degree are mentioned in following link:-
https://www.careers360.com/list-of-engineering-courses-offering-be-btech-degree-in-india