Hello Sanskriti,
At 83.16 percentile, chances for CSE (Cyber Security) at the Chennai campus are quite low without a home-state quota. Chennai CSE cutoff is usually between 90–98 percentile. ECE at Bengaluru campus is borderline possible only in later counselling rounds if seats remain. Bengaluru ECE cutoff is usually between 88–96 percentile. You have better chances for ECE or allied branches at the Chennai campus. Improving your percentile in AEEE Phase-2 can significantly increase your options.