Dear Jaya, for admission to MCA in NITTE, you should be appearing for KMAT Karnataka or Karnataka PGCET. For being eligible for these exams you should have completed your Bachelor's degree with a minimum aggregate of 50% with Mathematics as a subject. It is 50% for General Category and 45% for Reserved Categories. You can check the course fee structure and amenities at our page: https://www.careers360.com/colleges/nmam-institute-of-technology-karkala-taluk/mca-course
As far as the MCA from NITTE is concerned I would like to tell you that no Faculty of NITTTE (Deemed to be University) offers MCA program. The detailed information about the courses being offered can be found @ http://nitte.edu.in/courses.php
I hope it helps!