Unfortunately, I'm a text-based AI and do not have the capability to directly provide you with a downloadable PDF file. However, you can easily create your own PDF letterhead template using the above information.
[Top Right Corner]
[Insert Body of the letter]
Tata Motors Limited [Address] [City, State, Pincode] [Date]
Sincerely,
[Top Left Corner]
Subject: [Insert Subject]
Tata Motors Limited Registered Office: Mumbai - 400 072 India