Is this sentence correct - you had bee earlier discussed with Mr Dissanayaka?

No, that sentence is not correct. Here's why and how to fix it:

* "bee" should be "been"

* The sentence structure is awkward.

Here are a few ways to correct the sentence:

* "Had you been earlier discussed with Mr. Dissanayaka?" (This is a formal, interrogative way to ask if the discussion had already occurred.)

* "Did you discuss this earlier with Mr. Dissanayaka?" (This is a simpler and more common way to ask the question.)

* "I believe we discussed this earlier with Mr. Dissanayaka." (This is a statement confirming that the discussion took place.)

The best way to fix the sentence depends on the context and the desired tone.