See,first of all you must select a branch in which you have interest,otherwise you are the one who is going to face problem in future.Below I am gonna list out some important points about every branch so that you have an idea and becomes a bit easier for you to choose:-

Computer Science and Engineering:- As the name suggests it deals with computer science.First of all you must be well accustomed with coding and interestedd to do coding,then you must go ahead and might have a great future in this.From placement point of view this is the best.But if you do not like coding at all and just want to study CSE for placements ,Please don't do that.

Information Technology:- It's syllabus is kind of similar to CSE but it constitutes the Hardware syllabus as well,like microprocessors.This is easier than CSE and has almost same ranking in placements as compared to CSE.

Electronics and Communication Engineering:- It's syllabus is a combination of the Electronics and Computer Science Engineering.It mainly includes computer networks,Integrated Circuits,Chips,Embedded Systems etc.It comes after CSE in placement ranking.

Electrical and Electronics Engineering:- This is basically the study of electricity.Like how electricity is generated,transmitted etc.You will study about transformers and various other topics of generation,transmission and advancement of the electricity.Though the placement rate is low,since this is a core company,you can get into any company(Core as well as IT companies).

Mechanical Engineering:- For this you must have good and efficient hold and interest on physics.If you are very much curious about machine and interested to know more about Engines and Thermodynamics,this is the right choice for you.But mind it that mugging up things won't help you in the core branches.Placement rate is low but you get greater preferance in government jobs.

Civil Engineering:- If you had interest in Geography any time and loves more of field work,you can go for it.For this it's better if you are good in mathematics as it helps in Surveying.PLacement rate is low but good if you get a government job.

See the last three branches are the core groups,which are very interesting and easy to study if you understand things but their only problem is placements in most of the colleges.

So decide accordingly.