A rent agreement is a contract between a landlord and a Tenant. This document is very important as it contains the terms and conditions for the lease of a property. It must contain how the leased property is to be used, the tenure and the rent to be paid per month. It is advisable that the eviction clause should be present in the rent agreement to avoid any kind of dispute at a later stage.
Now coming to your query: I am presuming that your contract with your landlord also had these basic terms and conditions. You can always quote these violations of contract in the court and make them a ground for eviction.
Legally speaking: There are just two ways of eviction
1. Once your lease agreement gets over
2. When the landlord terminates the lease by sending a legal notice under section 106 of the Transfer of Property Act.
In both the cases, if the tenant does not vacate, the landlord have to file a suit for eviction in the district court and get an order.
Hope this solves your query.