Tenant eviction in Patna is governed by the Bihar Buildings (Lease, Rent and Eviction) Control Act 1982 — not the older 1947 Act, which has been superseded — and the detailed procedural rules under the Bihar Buildings (Lease, Rent and Eviction) Control Rules 1983. This statute applies throughout Bihar including Patna and provides the exclusive legal route for eviction of protected tenants; you cannot bypass it through an ordinary civil suit for eviction.

The Act provides specific grounds on which a landlord may seek eviction, and your case must fit one of them. The principal grounds are: default in payment of rent beyond the statutory threshold; subletting without the landlord's written permission; misuse of the premises — using them for a purpose other than the letting (for instance, running a commercial enterprise in a residentially let property); causing material damage to the building through wilful neglect or misuse; the landlord's bona fide personal requirement of the premises for their own occupation or that of close family members; and the building being required for demolition and essential reconstruction. Eviction proceedings under the 1982 Act are filed before the Rent Controller (the designated Munsif or Magistrate in Patna exercising rent control jurisdiction), with appeals lying to the District Judge and thereafter to the Patna High Court.

A practical point that regularly matters in default-based cases: the 1982 Act gives the tenant a right to deposit arrear rent in the Rent Controller's court within the time period the Act prescribes, and a tenant who makes such a deposit at the right stage can avoid eviction for rent default in certain circumstances. A landlord relying on default must therefore maintain a meticulous rent account from the start of the tenancy and present it accurately to the Rent Controller. For new tenancies begun after the property leaves rent control protection (depending on when the building was constructed), the ordinary law of contract and the Transfer of Property Act may permit a simpler civil recovery suit. The landlord-tenant and property advocates at the Patna panel of Aapka Legal Advice can assess which legal route fits your tenancy and file the eviction application effectively.