With a 75 percentile in JEE Mains, securing CSE in top colleges like RV College of Engineering (RVCE), BMS College of Engineering (BMSCE), or PES University is unlikely since their cutoffs for CSE are usually around 90–95 percentile. However, you may have a chance in private colleges like MS Ramaiah Institute of Technology (MSRIT), Acharya Institute of Technology, or Dayananda Sagar College which may have slightly lower cutoffs. Additionally, management quota seats could be an option, though the fees for such seats will be considerably higher.