bt hmne apne sir se bat kiye to wo bol rahe h ki jee adv 10th ke bad 3 year dekhta h ,plz sir help to sure that i am eligible or not

Rahulks9128825728 since you have passed the 12th exam on 2019 you are eligible to seat for jee advance if you have the qualified percentage in jee main. what the matter most is your 12th exam passing years , not 10th. others criteria to satisfy to appear in jee advance,
Candidates should have been born on or after October 1,1995. Five years relaxation is given to SC, ST and PwD candidates, i.e., these candidates should have been born on or after October 1, 1990.
A candidate should have appeared for the Class XII (or equivalent) examination for the first time in either 2019 or 2020 with Physics, Chemistry and Mathematics as compulsory subjects.
follow the official brochure to know more details,
https://drive.google.com/file/d/14eB9-PkdB7JBsCoW_H1Oa5ZYEZH5_ST0/view