National Cement Mines Industries Ltd. hereinafter referred to as the appellants are a public limited company incorporated to " carry on the 65 504 business of cement and lime manufacture and also of limestone supply and for the purposes of such businesses to acquire rights and concessions pertaining to limestone, coal and surface lands from the Dewar khand Karanpura Mines and Industries Ltd." and also to " work mines or quarries and to find, win, get, work, etc. or otherwise deal with clay and bauxite." Dewarkhand Karanpura Mines and Industries Ltd. hereinafter called the " Karanpura Company " had obtained three leases on November 29, 1930, first for mining limestone from Maharaja Pratap Narain Udai Nath Shah Deo from limestone beds in certain villages in Dewarkhand, second from Maharaj Kumar Nand Kishore Nath Shah Deo of the surface rights neces.