FIRE for Singles

[James]

Most of the talks here revolve around families and couples planning to RE.

What would be a good FIRE target for a 50‑year‑old single, no dependents, earning about INR 08 lakhs a year and wanting to retire early?

All insurances are already taken care of. I mainly have rental income. I'd like the nest egg to last for a maximum of 20‑25 years.