What does the idiom "Root and Branch" mean in the context of corruption?

• The required answer is - Removing corruption completely and thoroughly.

• Root and branch
English Meaning: used to express the thorough or radical nature of a process or operation / completely.
Bangla Meaning: সমূল / আমূল / সম্পূর্ণরূপে।

Ex. Sentence: We need root-and-branch reform of rape laws of our country.
Bangla Meaning: আমাদের দেশের ধর্ষণ আইনের আমূল পরিবর্তন প্রয়োজন।

Source: Website Lecture.