Ages of Lok Sabha members and the general population
In India, central government employees retire at the age of 60 years.
If held by that standard, about 222 Lok Sabha members would have to hang their boots.
Data about India's population was obtained from figures of the 2011 census: http://www.censusindia.gov.in/2011census/Age_level_Data/India/Age_data.xls
Data regarding the ages of the current Lok Sabha members was compiled from the official Lok Sabha website: http://220.127.116.11/LssNew/Members/MemberSearchByAge.aspx. Data for only 537 out of 544 members was available.
Data regarding the average ages of the previous Lok Sabhas was obtained from: http://pib.nic.in/elections2009/volume1/chap-27.pdf. It was assumed that the average age was for each Lok Sabha near the end of its term.
Average ages were used instead of the median ages because we could only find sources for the average age of the previous Lok Sabhas.
Feel free to look at the calculations used for our data: lok-sabha-age-calculations.xls