Reply to a Advocate Notice served on behalf of an employee

An FIR has been lodged against an employee who is deaf and dumb regarding a dispute regarding marriage. The IO of Police served a letter to the employer on 04/12/2019 asking to inform the employee to report to the IO for investigation as early as possible with no date & time stipulations. The information was further conveyed to the employee in writing on 11/12/2019 by the employer after 7 days of lapse of the letter submitted by the IO. Now, the hired advocate of the concerned employees has served a notice to the employer for not conveying the information immediately for which he could not attend the IO. However, the employee has been granted as anticipatory bail on 07/12/2019 from the court. The advocate has warned in the notice, that he shall drag the employer to the high court if something happens to the employee due to this delay in conveying the information. Moreover, the advocate is asking the employer to inform the IO to arrange for special educator during investigation as the employee is deaf and dumb. Sir, whether the notice has any logic? What should be written in the reply. Please advice.