Fine-tune(verb)
To make very small changes to something so that it is as good as it can possibly be.
Hindi meaning:ठीक करना
Synonyms: Modify, Refine, Improve, Alter, Graduate
Antonyms: Spoil, Impair, Disfigure, Blemish
Example: The scientific team is now fine-tuning the strategy for transfer to producers.
Trick to remember: radio ki tune ko fine tune kiya 
