An affidavit is a sworn legal statement used for name changes, address proof, or declarations, requiring stamp paper and notarization. A rental agreement defines terms between a landlord and tenant, covering rent, deposits, and eStampXpress, and is usually executed on e-stamp paper in Bangalore with a minimum ₹200 stamp duty. E-stamp paper is a secure digital alternative to traditional stamp paper, ensuring tamper-proof legal documentation. Understanding these documents helps prevent disputes and ensures compliance with the law. Seeking legal advice before drafting or signing such documents is crucial to safeguarding your rights and avoiding potential legal issues. Always seek legal.