1)Go in your PhpmyAdmin database.
2)Select your database.
3)Open your Table whose id you want to reset.
4)go to Operations tab on that table.
5)Scroll all the way down, You will find two options
a) Truncate the table b)Delete the table
6)Click on Truncate the table and after that go on the SQL tab of your table and enter the following line.

"ALTER TABLE xyz AUTO_INCREMENT=1"

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The issue that comes up when you delete a record and primary key is messed up again
Solution: After deleting row place this query
DELETE FROM table_name WHERE id=xyz
ALTER TABLE table_name AUTO_INCREMENT = 1

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