I'm extremely confused with btech cs and btech IT.Plzz explain what exactly it...

Well ... It depends on person to person ... CS and IT Both are good branches ... Both are related to computers and it's software and hardwares .... It would be more convenient if you have mentioned your interest .. but I apart from this CS Is mainly focuses on coding and mathematics  IT  also has coding but not as compared to CS  both branches has vast scope and if you want placement you can choose any of them .... On difficulty level ... By students I have listened that CS Is more tough than IT .... But at the end I will be your choice based on your interest ... Both branches are at their level

Hello,

• COMPUTER SCIENCE ENGINEERING
  

Computer science engineering (CSE) is one of the popular courses among engineering aspirants which focuses on the basic elements of computer programming and networking.Students pursuing computer science courses will gain knowledge of design, implementation and management of information system of both hardware and software.
For details: Click here

• INFORMATION TECHNOLOGY
  

A student holding a degree in Information Technology can work as an IT Engineer responsible for operating computer systems, software, servers, computer networking or network securities.The programme focuses on the theoretical and technical aspects of designing, developing, researching and testing software as well as digital hardware.
For details: Click here
Good luck.