Failing a subject in your final year of a polytechnic diploma can create uncertainty during B.Tech counselling.

This is the ideal situation. If your supplementary exam results are declared before counselling, you can participate with your complete academic record.

A good rank in ECET (Entrance Exam for Engineering Courses) will definitely strengthen your application for B.Tech courses.

If the results are delayed past the counselling date, it might restrict your options.Some colleges might allow provisional admission based on your past academic record and ECET rank. This would mean joining the course subject to clearing the supplementary exam within a stipulated timeframe (usually a semester or a year).Other colleges might have stricter requirements and exclude candidates with pending results.

I hope it helps!