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_65879 ( "Constituency number" text, "Name" text, "Reserved for ( SC / ST /None)" text, "District" text, "Number of electorates (2009)" real )

### Question ###
What is the number of electorates (2009) for the Indore district, when reserved for (SC / ST /None) is none, and constituency number is 208?

### Accurate SQL ###

SELECT SUM("Number of electorates (2009)") FROM table_65879 WHERE "District" = 'indore' AND "Reserved for ( SC / ST /None)" = 'none' AND "Constituency number" = '208'