In these days, both of them have the same meaning. There is no such difference.

IITS AND NITS OFFER B TECH

WHILE

MOST OTHER COLLEGES OFFER THE SAME WITH THE NAME OF BE.

Hello Dear ,
B.E stands for Bachelor of Engineering while B.Tech stands for Bachelor of Technology. These degrees are typically awarded to the students of engineering upon completion of course. It would be important to notice that the engineering course differs in different states all over India and all the leading independent Universities in India have their own courses. So there's no 'real' difference between these two degrees.

There are several colleges that offer B.E, which is more common among these two degrees while the IITs and other leading institutes offer B.Tech. Chemical engineers typically get the B.Tech degree while most other engineering disciplines are awarded the B.E degree.

I hope this will clear some confusion about the difference between B.E and B.Tech degrees.

B.E is Bachelor in Engineering whereas B.Tech is Bachelor in Technology. Some colleges or universities which provide engineering degree along with other degree generally gives the B.E. degree. And B.Tech is given by those where on Engineering studies are practised. Sometimes its is same but sometimes its different. Same in the sense it is in general for Engineering students and different because of the course structure they follow. But nowadays curriculum is more or less same. 

And this applies to all the branches including CSE.

Hope this help. Thank you!