Grammar Check: Correcting Sentence Structure with 'Accompanied By'

The sentence "Mr Ram accompanied by his friends were assembled at the lawn" is grammatically incorrect. The correct sentence should be:

"Mr Ram, accompanied by his friends, was assembled at the lawn."

In this sentence, "Mr Ram" is the subject of the sentence, "accompanied by his friends" is a phrase that describes Mr Ram, and "was assembled at the lawn" is the verb phrase that describes the action performed by Mr Ram and his friends.