What mistake did Shyama make initially when he met Shastri along with Ranga, although this was very well covered up by Shastri?

Dear student,

When, Shyama took Ranga to meet Shastri, ​​​he was about to blurt out the fact that he had met Shastri earlier that morning to further the plan to get Ranga married. Shastri covered up the blunder by completing the sentence he had started to mean that Shyama had completed his work that very morning and was free to visit him then.

Regards