user: 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?
Columns: ['Constituency number', 'Name', 'Reserved for ( SC / ST /None)', 'District', 'Number of electorates (2009)']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['203', 'Depalpur', 'None', 'Indore', 164506.0]
SQL:

assistant: SELECT "Number of electorates (2009)" FROM "Table" WHERE "District" = 'Indore' AND "Reserved for ( SC / ST /None)" = 'None' AND "Constituency number" = '208';