Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_10 ( population_2001_census INTEGER, population_1991_census VARCHAR )

### Question ###
What is the number of Population 2001 Census that has 476,815 in Population 1991 Census?

### Accurate SQL ###

SELECT SUM(population_2001_census) FROM table_name_10 WHERE population_1991_census = 476 OFFSET 815