HI,

The common notion is that for getting a job you require good marks, but fortunately its not always true. Marks are just a threshold point to interviewer cabin rest all depends upon your interpersonal skills.

If you are able to maintain 65 to 70 % it will be good but you should have good knowledge your syllabus and of any technical languages like C, C++ OR JAVA.

Focus more on gaining practical knowledge.

Interviewers, don't generally bother for better marks.