The rights of a tenant in a flat who has been living there for 30-40 years without a formal agreement. The landlord cannot deprive the tenant of essential services such as electricity, water, and lighting in the passage. The percentage of increase in rent each year will be governed by the provisions of the Maharashtra Rent Control Act 1999, which permits the landlord to make an increase of 4% per annum and also as permitted under the Act and its rules. The tenant is liable to pay the standard rent and permitted increases. If the landlord has undertaken expenses to make certain improvements or structural alterations to the premises, they can increase the rent beyond 4% and up to 25% per annum under the law.