Rent & lease agreements
Registration is compulsory whatever the term — even an 11-month agreement (Section 55, Maharashtra Rent Control Act 1999). It is the landlord's obligation, and where the agreement is not registered the tenant's account of the terms prevails. A large refundable deposit costs duty here: 10% a year of it is treated as rent.
Reference example — ₹25,000/month, 11 months, ₹1,00,000 deposit: duty ≈ ₹711 + registration ≈ ₹1,000 = ₹1,711 total.