What each document actually confirms, and the questions to ask when something is missing.
A RERA registration confirms that a project has been registered with the state regulator and that certain disclosures are on record. It is not a guarantee of quality or of timely delivery.
Layout approval confirms that a plotted development has been sanctioned by the competent authority. Building permission does the same for a vertical development.
The title chain establishes ownership history. Encumbrance certificates show registered charges over a defined period.
If any of these are unavailable, that is not automatically fraud, but it is a reason to pause, ask in writing, and wait until the document exists.
This article is general information, not investment, legal or tax advice. Verify all project documents independently before committing funds.