Letters Patent Bench on February 6,1962. In the circumstances of this case,we do not consider that there is such acquiescence on the part of the appellant as to disentitle it to a grant of writ under Art. 226of the Constitution. It is true that the issue of a writ certiorari is largely a matter of sound discretion. It is also true that the writ will not be granted if there is such negligence or omission on the part of the applicant to assert his right as, taken in conjunction with the lapse of time and other circumstance, cause prejudice to the adverse party. The principle is to a great extent, though not identical with,similar to the exercise of discretion in the Court of Chancery. The principle has been clearly stated by Sri Barnes Peacock in Lindsay Petroleum Company v. Prosper Armstrong Hurd, Abram Farewell and John Kemp [Law Reports5 P.C., 221 at 239] as follows :"Now the doctrine of laches in courts of equity is not an arbitrary or a technical doctrine. Where it would be practically unjust to give a remedy, either because the party has, by his conduct, done that which might fairly be regarded as equivalent to a waiver of it, or where by his conduct and neglect he has, though perhaps not waiving that remedy, yet put the other party in a situation in which it