Hello aspirant, 

Based on surveys and student reviews, here is the order of the colleges you have listed according to their rank

If you want good placements then your first preference should go to jss for both cse and ise. Though nie and JSS give a tough competition for the 1st place among the engineering colleges in mysore, jss is known to have more placement offers followed by NIE.  Also Both nie and JSS come within the top 10 colleges of mysore. So either cse or ise go for jss at first, then comes nie, later dayanand sagar, followed by SIT. Good luck!