In an application for dismissal for want of prosecution under Order 32 Rule 236(3)(b), the court must exercise judicial discretion by considering three factors: (1) the length of delay and explanation thereof; (2) prospects of success on the merits; and (3) balance of convenience and possible prejudice. These factors must be considered cumulatively, not in isolation. Under section 35 of the Mines and Minerals Act, when an area is reserved, the rights of holders of prospecting licences cease, unless they fall within the proviso as holders of a "mining location" - which requires that mining rights have already been acquired, not merely that the process of acquisition has commenced. A person who holds only a prospecting licence and is in the process of seeking a mining claim does not hold a "mining location" for purposes of the section 35 exemption.