Need an official letter for PERM Process

Hello Team,

I am a former employee of Dell International Services.

I am currently in the US and in process of filing for PERM here.

To process this request, our immigration team has requested for service letter with specific details in the letter including job dates, duties and responsibilities. 

I am unable to find any contact information for the HR team for Dell International Services in India.

Can you please assist me with this request.

Regards,

Haritha