Wrong date of deductions & short deduction in tds 26q

I have got 2 errors in my office's Q4 26Q filings 

1. Few deduction dates were wrong. Because of it justification file asked for interest.

But I filed a correction statement with correct dates. Its still pending for processing. Is this the appropriate way?

2. Lower tax was deducted at office in one specific deductee. For this I paid for one more challan in the same sec code and now waiting for it to get fetched by traces.

Please tell whether both measures taken by ne are correct or not ?