UGC NET Paper 1 GA 2009 Dec Solved Paper

Primary data: Data collected by the investigator himself/herself for a specific purpose.
Secondary data: Data collected by someone else for some purpose but being utilized by the investigator for another purpose.
Statistical Abstracts of India, now called Statistical Year Book of India is a yearly publication of The Ministry of Statistics and Programme Implementation containing statistical abstracts compiled from data collected for various purposes in different areas of governance. All the other are collected for the very purpose and are primary sources of data.