New Delhi: The Sabarimala temple management today told the Supreme Court that the ban on entry of females aged between 10 and 50 years was because they cannot maintain "purity" for 41 days on account of menstruation, prompting the judges to ask how periods could be linked to purity. Travancore Devaswom Board, which manages the shrine in Kerala, also claimed the ban was not discrimininatory and based on "reasonable classification". "There is no gender discrimination. There is a reasonable classification by which certain class of women are excluded," senior advocate K K Venugopal, representing the Devaswom Board, told a three-judge bench headed by Justice Dipak Misra. "What is the fulcrum of this classification," the bench asked referring to the bar on entry of women of a particular age group. Venugopal said girls and women in the age group are excluded as they cannot maintain purity for a period of 41 days due to the mensuration. ...