Which engineering branch is best? How to select the same?

I would suggest you go for admission in a stream of your choice . If you work hard and get a good score in a course you do, then companies will definitely pick you for the best job profile. So check some good univs like BIT, LPU, RV etc and try for admission as you are also liable for a big scholars

Selection of branch totally depends on your interest.U have to look out the syllabus of various branches and decide the subjects in which u interested and then accordinly u can choose your preferred branch.And subject can be decided on the jee main marks.