Retroactively meaning in hindi

How to pronounce Retroactively
As noun : पूर्व क्रियाकलाप के अनुसर Ex:  Parliament retroactively changed the Constitution
Other :
ऐसा कार्य करते हुए Ex:  he will get paid retroactively
Examples
Usage of Retroactively in sentences

The word can be used as noun in hindi and have more than one meaning. 
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