The principal issues which arose for decision before the trial court were: (1) Was Raja Jugal Kishore Singh the Putrika Putra of Raja Dhrub Singh by appointed daughter and affiliated as such as 16 alleged by the plaintiffs in Title Suit No. 44 of 1955 and Title Suit No. 25 of 1958? (2) Was succession to Bettiah Estate governed by the Mithila or the Benares School of Hindu Law? (3) Was the Bettiah Estate self acquired or the joint property of Raja Jugal Kishore Singh? (4) Was the succession to the Bettiah estate governed by the rule of primogeniture? (5) Whether any of the plaintiffs was the heir of the last male holder; and (6) Has the Bettiah estate vested in the State of Bihar by escheat? At the conclusion of the trial, the trial court held that the custom of taking a son as Putrika Putra had become obsolete by the time Raja Dhrub Singh was alleged to have taken Raja Jugal Kishore Singh as the Putrika Putra and, therefore, Raja Jugal Kishore Singh was not the Putrika putra of Raja Dhrub Singh; that the succession to the estate of Maharaja Harendra Kishore Singh was governed by the Benares School of Hindu law; that the estate having been acquired by force of arms was the self acquired property of Raja Jugal Kishore Singh; that the succession of the Bettiah estate was not governed by the rule of primogeniture; that in view of the finding that Raja Jugal Kishore Singh was neither putrika putra nor was he affiliated to of family of Raja Dhrub Singh by adoption in any form, the plaintiffs in Title Suit No. 25 of 1958 and Title Suit No. 44 of 1955 could not claim to be the heirs of the last male holder: that the plaintiffs in Title Suit No. 5 of 1961 had not established that they were the reversioners to the estate and as none of the plaintiffs in the three suits had established that they were entitled to the estate it had vested in the State of Bihar by virtue of the rule of escheat.