Art.226 - Reasonable period is 90 days .- Discretionary jurisdiction- Though there is no specific provision to the effect that relief under Article 226 of the Constitution of India should not be granted if the petition is not filed within a specified time, this court has almost always insisted that the period of 90 days shall ordinarily be treated as the reasonable time limit within which its jurisdiction shall be invoked. In matters of promotion, a period of one year after the action impugned was the maximum period within which this jurisdiction shall be invoked. If the court was approached beyond a reasonable period of time, there shall be explanation for the delay, and in its absence, the relief is liable to be refused. [Gopalakrishnan v. State of Kerala, 1986 KLT 817, Sivaraman Nair (J)]