One of my friends recently graduated from Dayananda Sagar College of Engineering and according to him, if you fall under the General Merit category, there is no chance of getting CSE in DSCE. For DSCE the recent cutoff for CSE is 2361.
But if you fall under other reservation categories, then there is a chance you can get a seat in the second shift in CSE. Check the recent cutoff rank for your category to know about your chances.
There is no difference between the normal shift or the second shift. The only difference is the college code. Rest all is as the normal shift. You can't change your branch if you get admission in the second shift.
If placement is your concern, then you can also go for DSATM. Because during placements, both DSCE and DSATM students are allowed to attend together in the same campus.
There is no partiality between DSCE or DSATM for placements. All are given equal opportunity.