Crude Literacy Rate: Up to 1981 census, literacy rate was calculated by dividing literate persons by total population and multiplying by hundred. This was ‘crude literacy rate’ and was calculated by using the following formula : \(Crude\, Literacy\,rate\, = rac {Literte\, population}{Total\, population} imes 100\) (In this total population means 0 age to the old age). Literacy Rate: The literacy rate becomes more meaningful if the sub-population in the age group 0-6 is excluded from the total population, so it was decided in 1991 to use the term literacy rate for the total population relating to seven years and above. The same concept has been continued in 2001. It is a better measure of literacy and is calculated by the following formula: \(Literacy\, rate = rac{Literate\, population}{population\, in\, the\, age\, of\, group\, of\, saven\, years\, and\, above} imes 100\) Literacy rate is more meaningful, accurate in finding out the percentage of literate people than the crude literacy rate.