I used below command to grant select PRIVILEGES on specific columns of a MySQL database table:

GRANT SELECT (p_id) ON DB_NAME.TABLE_NAME TO 'dbuser'@'localhost'

It is showing given PRIVILEGES with SHOW GRANTS command but when i login to phpMyAdmin with this user and try to select DB Table, it gives error

#1142 - SELECT command denied to user 'dbuser'@'localhost' for table 'my_users'

My select is:

 SELECT * FROM `main_users`

How can I give select feature on specific columns of DB table?