I got 82% in PCM. And my entrance exam (JEE) percentile is 73.16. will I get mechanical. ?

Please use college predictor of JEE Mains https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor&ved=2ahUKEwjZ55bk3bHiAhWafysKHc-PBeQQFjAAegQIAxAB&usg=AOvVaw1N9BzFtyUCP4JU-2UQHQ0H.

Hi, Visit this link to check colleges based upon your rank: https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

No, you won't get any seat with that percentile. Even with management quota, it will be tough, though you can give a try. Your percentage is good but how come your percentile is low.