The phrase 'bottom line' means-

• The phrase 'bottom line' means- ক) The essential or salient point

• Bottom line
- English Meaning: The essential or salient point; the fundamental and most important factor.
- Bangla Meaning: প্রধান; মৌলিক; গুরুত্বপূর্ণ বিষয়।

• Ex. Sentences:
- He's always got his eye on the bottom line.
- The bottom line is I'm still married to Danny.

Source:
1. Cambridge Dictionary.
2. Merriam-Webster Dictionary.