If A gives a house on lease to B and it catches fire and

Solution

Transfer of Property Act  S. 108 (B) Rights and liabilities of the lessee (e) if by fire, tempest or flood, or violence of an army or of a mob, or other irresistible force, any material part of the property be wholly destroyed or rendered substantially and permanently unfit for the purposes for which it was let, the lease shall, at the option of the lessee, be void: Provided that, if the injury be occasioned by the wrongful act or default of the lessee, he shall not be entitled to avail himself of the benefit of this provision.