Glossary entry (derived from question below)
English term or phrase:
Due diligence
Bengali translation:
যথাযথ অধ্যয়ন
English term
India
Due diligence
Example: Due diligence was done before the merger.
Proposed translations
India
Translation Services India
Native in: Hindi 
, Bengali
Works in: English to Hindi, English to Bengali, English to Burmese, and 12 more.
যথাযথ অধ্যয়ন
আগে একটি যথাযথ অধ্যয়ন করা হবে।
Bangladesh
Performance will speak about me
Native in: Bengali (Variant: Bangladeshi) 
Works in: English to Bengali, Bengali to English, Bengali, and 2 more.
তদন্ত/অনুসন্ধান
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Note added at 9 mins (2017-06-25 14:47:04 GMT)
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You an translate the expression 'Due diligence was done before the merger' as 'একীভূতকরণের পূর্বে তদন্ত/অনুসন্ধান সম্পন্ন করা হয়' or something like that.
Ref: https://en.wikipedia.org/wiki/Due_diligence
Bangladesh
NAATI Accredited 21 yrs in Medical Trans
Native in: Bengali
Works in: English to Bengali, Bengali to English, Bengali, and 1 more.
যথাযথভাবে পরীক্ষা-নিরীক্ষা করা
Some other alternatives are: যুক্তিসঙ্গত পদক্ষেপ, উপযুক্ত পদক্ষেপ, যুক্তিসঙ্গত অনুসন্ধান, ডিউ ডিলিজেন্স, প্রয়োজনীয় সতর্কতামূলক ব্যবস্থা গ্রহণ, ইত্যাদি৷
| Thnak you |
India
Native in: Bengali (Variants: Bangladeshi, Indian) , Hindi (Variant: Indian)
Works in: English to Bengali, Bengali to English, English to Hindi, and 2 more.
উপযুক্ত মূল্যায়ন
| disagree |
Alok Tiwari
: repetition
2 days 8 hrs
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Repetition? Can you furnish with proper logic?
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India
Software Localization
Native in: Bengali
Works in: English to Bengali, Bengali to English, English to Hindi, and 11 more.
সমস্ত দিক ভালো করে খতিয়ে দেখা হয়েছে
সমস্ত দিক ভালো করে বিবেচনা করা হয়েছে
| disagree |
Feroz Ahmed
: Your suggested phrase is equal to a 'verb' while the source is a Noun Phrase. Needs much care.
806 days
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Bangladesh
Great Care and Best Service...
Native in: Bengali (Variant: Bangladeshi)
Works in: English to Bengali, Bengali to English
যথাযথ তৎপরতা, উপযুক্ত পদক্ষেপ, যথাযথ অনুসন্ধান
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Note added at 810 days (2019-09-13 19:47:19 GMT) Post-grading
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It means whether the 'officer' has put 'much efforts worthy of the task' while dealing with the task.
Due diligence was done before the merger.
একীভূতকরণের পূর্বে যথাযথ অনুসন্ধান করা হয়েছে।
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