Both the colleges you have mentioned are well named private engineering colleges in Karnataka. Now infrastructurally both the institutes are great although JTSSTU have a larger campus area compared to that of DSCE. Although, the campus area must not be a concern of any candidate.

The number of Faculty members in the DSCE is around 482 where as for the JTSSTU is around 300. Its always better for a student to go for a college which have a larger faculty chain so that the faculty per student must be high.  Apart from this both the institute have well equipped lab facilities but the innovative academic criteria is better in DSCE compared to that of JTSSTU.

Distinguishing this two colleges is very hard and the opinion may differ. But from the perspective of placement its clear the median salary for the CSE is better in DSCE is better compared to that of JTSSTU.

So as per this information, going for the DSCE will be a better choice.

For more information regarding DSCE consider the link below:

https://www.careers360.com/colleges/dayananda-sagar-college-of-engineering-bangalore

For more information regarding JSS Science and Technology University, Mysuru consider the link provided below:

https://www.careers360.com/university/jss-science-and-technology-university-mysuru

I hope this helps. Wish you a great day!