Hello aspirant!
Hope you are doing well!

some of teh good colleges of MLT in Karnataka are

• Padmashree Institute of Medical Lab Technology- application form available
  https://padmashree.org/Application-Form/
• Government Science College, Hassan- https://dce.kar.nic.in/DCEadmissions/Admissionform.aspx
• Acharya Institute Of Health Sciences
  https://www.aihs.ac.in/apply-now.html
• Government College Of Nursing
• Department Of Community Medicine, BMCRI
  
  Application forms are mostly available
  I would suggest you to visit the officials sites of your preferred college to check details.