Rent & lease agreements
For an 11-month agreement the duty caps at ₹500, so most tenancies pay exactly that whatever the rent. Registration is not compulsory below 12 months. Bengaluru adds a cess and surcharge on the duty for registered instruments.
Reference example — ₹25,000/month, 11 months, ₹1,00,000 deposit: duty ≈ ₹500.