need not be multiplied. In Munshi Ram case , it was held that no one, including the true owner, has a right to dispossess the trespasser by force if the trespasser is in settled possession of the land and in such a case unless he is evicted in the due course of law, he is entitled to defend his possession even against the rightful owner. But merely stray or even intermittent acts of trespass do not give such a right against the true owner. The possession which a trespasser is entitled to defend against the rightful owner must be settled possession, extending over a sufficiently long period of time and acquiesced to by the true owner. A casual act of possession would not have the effect of interrupting the possession of the rightful owner. The rightful owner may reenter and reinstate himself, provided he does not use more force than is necessary. Such entry will be viewed only as resistance to an intrusion upon his possession which has not matured into settled possession, can be obstructed or removed b y the true owner even by using necessary force. In Puran Singh case the Court clarified that it is difficult to lay down any hard-and-fast rule as to when the possession of a trespasser can mature into settled possession. The “Settled possession” must be (i) effective, (ii)) undisturbed, and (iii) to the knowledge of the power or without any attempt at concealment by the trespasser. The phrase “settled possession” does not carry any special charm or magic in it; nor is it a ritualistic formula which can be confined to a straitjacket. An occupation of the property by a person as an agent or a servant acting at the instance of the owner will amount amount to actual physical possession. The Court laid down the following tests which may be adopted as a working rule for determining the attributes of “settled possession” (SCC p. 527, para 12):