You need to save all the text as UTF8, after which you can see the Hindi characters. You can update the column to use UTF8 with a query that resembles the following:
ALTER TABLE posts MODIFY title VARCHAR(255) CHARACTER SET UTF8;
Since you are using PHP, make sure all your PHP scripts are saved as UTF8. You can also establish a connection chain with the following query:
SET NAMES 'utf8'
This will connect your web server and database servers using UTF8.
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