Subject: Authorisation as next of kin for [Parent's Name], admission [Date]

To: The Medical Director and the treating physician, [Hospital name and address]
Cc: Hospital billing department, hospital grievance cell

Sir or Madam,

I am [Your Name], holder of Indian passport [Number] and OCI card [Number], son or daughter of [Parent's Name], who is presently admitted at your hospital, IP number [Number]. I am writing from [Country] where I currently reside.

I confirm the following.

1. I am the next of kin and authorise [Local guardian's name] or any responsible adult attending the patient to provide consent for necessary investigations and treatment.
2. I will arrange the advance deposit by [date] through [mode of payment].
3. Please send me a daily update by email at [Email] with the treating doctor's note, billing summary and any major decision pending.
4. Please share the complete case sheet at discharge for my records.

I attach my passport biodata page, OCI card and a copy of [Parent's Name] Aadhaar.

Yours faithfully,
[Your Name]
[Email]
[Indian mobile / overseas mobile]
[Date]